Home / 42,508.13-63,764.82-12,928.14

Finding the Fourth Proportional to 42,508.13, 63,764.82 and 12,928.14

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Solution

The fourth proportional to 42,508.13, 63,764.82 and 12,928.14 is: 19,393.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,508.13 : 63,764.82 = 12,928.14 : x
  2. Step 2: Convert to fraction form
    42,508.13/63,764.82 = 12,928.14/x
  3. Step 3: Cross multiply
    42,508.13x = 63,764.82 × 12,928.14
  4. Step 4: Simplify right side
    42,508.13x = 824,360,520.03
  5. Step 5: Solve for x
    x = 824,360,520.03/42,508.13
  6. Step 6: Final answer
    x = 19,393.01

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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.