Home / 31,037.66-42,841.01-20,284.10

Finding the Fourth Proportional to 31,037.66, 42,841.01 and 20,284.10

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Solution

The fourth proportional to 31,037.66, 42,841.01 and 20,284.10 is: 27,997.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,037.66 : 42,841.01 = 20,284.10 : x
  2. Step 2: Convert to fraction form
    31,037.66/42,841.01 = 20,284.10/x
  3. Step 3: Cross multiply
    31,037.66x = 42,841.01 × 20,284.10
  4. Step 4: Simplify right side
    31,037.66x = 868,991,438.04
  5. Step 5: Solve for x
    x = 868,991,438.04/31,037.66
  6. Step 6: Final answer
    x = 27,997.97

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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.