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Finding the Fourth Proportional to 32,070.80, 48,127.80 and 18,909.20

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Solution

The fourth proportional to 32,070.80, 48,127.80 and 18,909.20 is: 28,376.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,070.80 : 48,127.80 = 18,909.20 : x
  2. Step 2: Convert to fraction form
    32,070.80/48,127.80 = 18,909.20/x
  3. Step 3: Cross multiply
    32,070.80x = 48,127.80 × 18,909.20
  4. Step 4: Simplify right side
    32,070.80x = 910,058,195.76
  5. Step 5: Solve for x
    x = 910,058,195.76/32,070.80
  6. Step 6: Final answer
    x = 28,376.54

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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.