Home / 42,398.58-63,589.68-12,809.52

Finding the Fourth Proportional to 42,398.58, 63,589.68 and 12,809.52

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Solution

The fourth proportional to 42,398.58, 63,589.68 and 12,809.52 is: 19,211.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,398.58 : 63,589.68 = 12,809.52 : x
  2. Step 2: Convert to fraction form
    42,398.58/63,589.68 = 12,809.52/x
  3. Step 3: Cross multiply
    42,398.58x = 63,589.68 × 12,809.52
  4. Step 4: Simplify right side
    42,398.58x = 814,553,277.75
  5. Step 5: Solve for x
    x = 814,553,277.75/42,398.58
  6. Step 6: Final answer
    x = 19,211.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.