Home / 31,125.84-42,957.28-17,699.08

Finding the Fourth Proportional to 31,125.84, 42,957.28 and 17,699.08

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Solution

The fourth proportional to 31,125.84, 42,957.28 and 17,699.08 is: 24,426.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,125.84 : 42,957.28 = 17,699.08 : x
  2. Step 2: Convert to fraction form
    31,125.84/42,957.28 = 17,699.08/x
  3. Step 3: Cross multiply
    31,125.84x = 42,957.28 × 17,699.08
  4. Step 4: Simplify right side
    31,125.84x = 760,304,335.30
  5. Step 5: Solve for x
    x = 760,304,335.30/31,125.84
  6. Step 6: Final answer
    x = 24,426.79

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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.