Home / 23,289.78-32,139.08-12,679.24

Finding the Fourth Proportional to 23,289.78, 32,139.08 and 12,679.24

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Solution

The fourth proportional to 23,289.78, 32,139.08 and 12,679.24 is: 17,496.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,289.78 : 32,139.08 = 12,679.24 : x
  2. Step 2: Convert to fraction form
    23,289.78/32,139.08 = 12,679.24/x
  3. Step 3: Cross multiply
    23,289.78x = 32,139.08 × 12,679.24
  4. Step 4: Simplify right side
    23,289.78x = 407,499,108.70
  5. Step 5: Solve for x
    x = 407,499,108.70/23,289.78
  6. Step 6: Final answer
    x = 17,496.91

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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.