Home / 30,839.23-42,558.92-18,909.15

Finding the Fourth Proportional to 30,839.23, 42,558.92 and 18,909.15

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Solution

The fourth proportional to 30,839.23, 42,558.92 and 18,909.15 is: 26,095.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,839.23 : 42,558.92 = 18,909.15 : x
  2. Step 2: Convert to fraction form
    30,839.23/42,558.92 = 18,909.15/x
  3. Step 3: Cross multiply
    30,839.23x = 42,558.92 × 18,909.15
  4. Step 4: Simplify right side
    30,839.23x = 804,753,002.12
  5. Step 5: Solve for x
    x = 804,753,002.12/30,839.23
  6. Step 6: Final answer
    x = 26,095.11

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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.