Home / 23,289.16-32,139.09-12,678.76

Finding the Fourth Proportional to 23,289.16, 32,139.09 and 12,678.76

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Solution

The fourth proportional to 23,289.16, 32,139.09 and 12,678.76 is: 17,496.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,289.16 : 32,139.09 = 12,678.76 : x
  2. Step 2: Convert to fraction form
    23,289.16/32,139.09 = 12,678.76/x
  3. Step 3: Cross multiply
    23,289.16x = 32,139.09 × 12,678.76
  4. Step 4: Simplify right side
    23,289.16x = 407,483,808.73
  5. Step 5: Solve for x
    x = 407,483,808.73/23,289.16
  6. Step 6: Final answer
    x = 17,496.72

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Half scale
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Double scale
Find fourth proportional to 23,290.16, 32,140.47 and 12,679.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.