Home / 42,374.75-63,562.73-20,190.47

Finding the Fourth Proportional to 42,374.75, 63,562.73 and 20,190.47

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Solution

The fourth proportional to 42,374.75, 63,562.73 and 20,190.47 is: 30,285.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,374.75 : 63,562.73 = 20,190.47 : x
  2. Step 2: Convert to fraction form
    42,374.75/63,562.73 = 20,190.47/x
  3. Step 3: Cross multiply
    42,374.75x = 63,562.73 × 20,190.47
  4. Step 4: Simplify right side
    42,374.75x = 1,283,360,974.42
  5. Step 5: Solve for x
    x = 1,283,360,974.42/42,374.75
  6. Step 6: Final answer
    x = 30,285.99

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1.5x scale

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.