Home / 38,520.02-53,158.65-21,753.02

Finding the Fourth Proportional to 38,520.02, 53,158.65 and 21,753.02

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Solution

The fourth proportional to 38,520.02, 53,158.65 and 21,753.02 is: 30,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.02 : 53,158.65 = 21,753.02 : x
  2. Step 2: Convert to fraction form
    38,520.02/53,158.65 = 21,753.02/x
  3. Step 3: Cross multiply
    38,520.02x = 53,158.65 × 21,753.02
  4. Step 4: Simplify right side
    38,520.02x = 1,156,361,176.62
  5. Step 5: Solve for x
    x = 1,156,361,176.62/38,520.02
  6. Step 6: Final answer
    x = 30,019.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.