Home / 42,520.90-63,764.88-14,436.22

Finding the Fourth Proportional to 42,520.90, 63,764.88 and 14,436.22

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Solution

The fourth proportional to 42,520.90, 63,764.88 and 14,436.22 is: 21,648.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,520.90 : 63,764.88 = 14,436.22 : x
  2. Step 2: Convert to fraction form
    42,520.90/63,764.88 = 14,436.22/x
  3. Step 3: Cross multiply
    42,520.90x = 63,764.88 × 14,436.22
  4. Step 4: Simplify right side
    42,520.90x = 920,523,835.95
  5. Step 5: Solve for x
    x = 920,523,835.95/42,520.90
  6. Step 6: Final answer
    x = 21,648.74

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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.