Home / 20,747.10-31,104.81-10,366.14

Finding the Fourth Proportional to 20,747.10, 31,104.81 and 10,366.14

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Solution

The fourth proportional to 20,747.10, 31,104.81 and 10,366.14 is: 15,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.10 : 31,104.81 = 10,366.14 : x
  2. Step 2: Convert to fraction form
    20,747.10/31,104.81 = 10,366.14/x
  3. Step 3: Cross multiply
    20,747.10x = 31,104.81 × 10,366.14
  4. Step 4: Simplify right side
    20,747.10x = 322,436,815.13
  5. Step 5: Solve for x
    x = 322,436,815.13/20,747.10
  6. Step 6: Final answer
    x = 15,541.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.