Home / 42,538.80-63,805.87-12,954.16

Finding the Fourth Proportional to 42,538.80, 63,805.87 and 12,954.16

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Solution

The fourth proportional to 42,538.80, 63,805.87 and 12,954.16 is: 19,430.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,538.80 : 63,805.87 = 12,954.16 : x
  2. Step 2: Convert to fraction form
    42,538.80/63,805.87 = 12,954.16/x
  3. Step 3: Cross multiply
    42,538.80x = 63,805.87 × 12,954.16
  4. Step 4: Simplify right side
    42,538.80x = 826,551,065.12
  5. Step 5: Solve for x
    x = 826,551,065.12/42,538.80
  6. Step 6: Final answer
    x = 19,430.52

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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.