Home / 42,419.20-63,653.10-16,142.80

Finding the Fourth Proportional to 42,419.20, 63,653.10 and 16,142.80

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Solution

The fourth proportional to 42,419.20, 63,653.10 and 16,142.80 is: 24,223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,419.20 : 63,653.10 = 16,142.80 : x
  2. Step 2: Convert to fraction form
    42,419.20/63,653.10 = 16,142.80/x
  3. Step 3: Cross multiply
    42,419.20x = 63,653.10 × 16,142.80
  4. Step 4: Simplify right side
    42,419.20x = 1,027,539,262.68
  5. Step 5: Solve for x
    x = 1,027,539,262.68/42,419.20
  6. Step 6: Final answer
    x = 24,223.45

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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.