Home / 31,060.97-42,864.19-16,913.81

Finding the Fourth Proportional to 31,060.97, 42,864.19 and 16,913.81

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Solution

The fourth proportional to 31,060.97, 42,864.19 and 16,913.81 is: 23,341.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,060.97 : 42,864.19 = 16,913.81 : x
  2. Step 2: Convert to fraction form
    31,060.97/42,864.19 = 16,913.81/x
  3. Step 3: Cross multiply
    31,060.97x = 42,864.19 × 16,913.81
  4. Step 4: Simplify right side
    31,060.97x = 724,996,830.34
  5. Step 5: Solve for x
    x = 724,996,830.34/31,060.97
  6. Step 6: Final answer
    x = 23,341.09

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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.