Home / 13,910.57-20,732.01-13,689.14

Finding the Fourth Proportional to 13,910.57, 20,732.01 and 13,689.14

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Solution

The fourth proportional to 13,910.57, 20,732.01 and 13,689.14 is: 20,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.57 : 20,732.01 = 13,689.14 : x
  2. Step 2: Convert to fraction form
    13,910.57/20,732.01 = 13,689.14/x
  3. Step 3: Cross multiply
    13,910.57x = 20,732.01 × 13,689.14
  4. Step 4: Simplify right side
    13,910.57x = 283,803,283.71
  5. Step 5: Solve for x
    x = 283,803,283.71/13,910.57
  6. Step 6: Final answer
    x = 20,402.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.