Home / 22,430.55-30,954.01-12,358.76

Finding the Fourth Proportional to 22,430.55, 30,954.01 and 12,358.76

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Solution

The fourth proportional to 22,430.55, 30,954.01 and 12,358.76 is: 17,055.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,430.55 : 30,954.01 = 12,358.76 : x
  2. Step 2: Convert to fraction form
    22,430.55/30,954.01 = 12,358.76/x
  3. Step 3: Cross multiply
    22,430.55x = 30,954.01 × 12,358.76
  4. Step 4: Simplify right side
    22,430.55x = 382,553,126.49
  5. Step 5: Solve for x
    x = 382,553,126.49/22,430.55
  6. Step 6: Final answer
    x = 17,055.00

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Half scale
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Double scale
Find fourth proportional to 22,431.55, 30,955.39 and 12,359.76
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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.