Home / 30,839.04-42,557.86-16,691.88

Finding the Fourth Proportional to 30,839.04, 42,557.86 and 16,691.88

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Solution

The fourth proportional to 30,839.04, 42,557.86 and 16,691.88 is: 23,034.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,839.04 : 42,557.86 = 16,691.88 : x
  2. Step 2: Convert to fraction form
    30,839.04/42,557.86 = 16,691.88/x
  3. Step 3: Cross multiply
    30,839.04x = 42,557.86 × 16,691.88
  4. Step 4: Simplify right side
    30,839.04x = 710,370,692.18
  5. Step 5: Solve for x
    x = 710,370,692.18/30,839.04
  6. Step 6: Final answer
    x = 23,034.79

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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.