Home / 42,463.36-63,693.96-20,292.40

Finding the Fourth Proportional to 42,463.36, 63,693.96 and 20,292.40

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Solution

The fourth proportional to 42,463.36, 63,693.96 and 20,292.40 is: 30,438.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,463.36 : 63,693.96 = 20,292.40 : x
  2. Step 2: Convert to fraction form
    42,463.36/63,693.96 = 20,292.40/x
  3. Step 3: Cross multiply
    42,463.36x = 63,693.96 × 20,292.40
  4. Step 4: Simplify right side
    42,463.36x = 1,292,503,313.90
  5. Step 5: Solve for x
    x = 1,292,503,313.90/42,463.36
  6. Step 6: Final answer
    x = 30,438.08

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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.