Home / 31,044.16-42,841.68-16,897.76

Finding the Fourth Proportional to 31,044.16, 42,841.68 and 16,897.76

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Solution

The fourth proportional to 31,044.16, 42,841.68 and 16,897.76 is: 23,319.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,044.16 : 42,841.68 = 16,897.76 : x
  2. Step 2: Convert to fraction form
    31,044.16/42,841.68 = 16,897.76/x
  3. Step 3: Cross multiply
    31,044.16x = 42,841.68 × 16,897.76
  4. Step 4: Simplify right side
    31,044.16x = 723,928,426.64
  5. Step 5: Solve for x
    x = 723,928,426.64/31,044.16
  6. Step 6: Final answer
    x = 23,319.31

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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.