Home / 42,290.60-63,349.78-20,036.52

Finding the Fourth Proportional to 42,290.60, 63,349.78 and 20,036.52

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Solution

The fourth proportional to 42,290.60, 63,349.78 and 20,036.52 is: 30,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,290.60 : 63,349.78 = 20,036.52 : x
  2. Step 2: Convert to fraction form
    42,290.60/63,349.78 = 20,036.52/x
  3. Step 3: Cross multiply
    42,290.60x = 63,349.78 × 20,036.52
  4. Step 4: Simplify right side
    42,290.60x = 1,269,309,133.97
  5. Step 5: Solve for x
    x = 1,269,309,133.97/42,290.60
  6. Step 6: Final answer
    x = 30,013.98

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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.