Home / 31,715.09-47,574.69-10,654.28

Finding the Fourth Proportional to 31,715.09, 47,574.69 and 10,654.28

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Solution

The fourth proportional to 31,715.09, 47,574.69 and 10,654.28 is: 15,982.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,715.09 : 47,574.69 = 10,654.28 : x
  2. Step 2: Convert to fraction form
    31,715.09/47,574.69 = 10,654.28/x
  3. Step 3: Cross multiply
    31,715.09x = 47,574.69 × 10,654.28
  4. Step 4: Simplify right side
    31,715.09x = 506,874,296.29
  5. Step 5: Solve for x
    x = 506,874,296.29/31,715.09
  6. Step 6: Final answer
    x = 15,982.12

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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.