Home / 42,253.20-63,328.60-18,854.80

Finding the Fourth Proportional to 42,253.20, 63,328.60 and 18,854.80

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Solution

The fourth proportional to 42,253.20, 63,328.60 and 18,854.80 is: 28,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,253.20 : 63,328.60 = 18,854.80 : x
  2. Step 2: Convert to fraction form
    42,253.20/63,328.60 = 18,854.80/x
  3. Step 3: Cross multiply
    42,253.20x = 63,328.60 × 18,854.80
  4. Step 4: Simplify right side
    42,253.20x = 1,194,048,087.28
  5. Step 5: Solve for x
    x = 1,194,048,087.28/42,253.20
  6. Step 6: Final answer
    x = 28,259.35

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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.