Home / 42,445.60-63,652.20-12,853.60

Finding the Fourth Proportional to 42,445.60, 63,652.20 and 12,853.60

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Solution

The fourth proportional to 42,445.60, 63,652.20 and 12,853.60 is: 19,275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,445.60 : 63,652.20 = 12,853.60 : x
  2. Step 2: Convert to fraction form
    42,445.60/63,652.20 = 12,853.60/x
  3. Step 3: Cross multiply
    42,445.60x = 63,652.20 × 12,853.60
  4. Step 4: Simplify right side
    42,445.60x = 818,159,917.92
  5. Step 5: Solve for x
    x = 818,159,917.92/42,445.60
  6. Step 6: Final answer
    x = 19,275.49

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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.