Home / 42,426.94-63,543.48-20,255.92

Finding the Fourth Proportional to 42,426.94, 63,543.48 and 20,255.92

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Solution

The fourth proportional to 42,426.94, 63,543.48 and 20,255.92 is: 30,337.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,426.94 : 63,543.48 = 20,255.92 : x
  2. Step 2: Convert to fraction form
    42,426.94/63,543.48 = 20,255.92/x
  3. Step 3: Cross multiply
    42,426.94x = 63,543.48 × 20,255.92
  4. Step 4: Simplify right side
    42,426.94x = 1,287,131,647.40
  5. Step 5: Solve for x
    x = 1,287,131,647.40/42,426.94
  6. Step 6: Final answer
    x = 30,337.60

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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.