Home / 42,275.60-63,327.28-20,021.52

Finding the Fourth Proportional to 42,275.60, 63,327.28 and 20,021.52

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Solution

The fourth proportional to 42,275.60, 63,327.28 and 20,021.52 is: 29,991.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,275.60 : 63,327.28 = 20,021.52 : x
  2. Step 2: Convert to fraction form
    42,275.60/63,327.28 = 20,021.52/x
  3. Step 3: Cross multiply
    42,275.60x = 63,327.28 × 20,021.52
  4. Step 4: Simplify right side
    42,275.60x = 1,267,908,403.07
  5. Step 5: Solve for x
    x = 1,267,908,403.07/42,275.60
  6. Step 6: Final answer
    x = 29,991.49

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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.