Home / 38,190.50-52,703.25-21,423.86

Finding the Fourth Proportional to 38,190.50, 52,703.25 and 21,423.86

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Solution

The fourth proportional to 38,190.50, 52,703.25 and 21,423.86 is: 29,565.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,190.50 : 52,703.25 = 21,423.86 : x
  2. Step 2: Convert to fraction form
    38,190.50/52,703.25 = 21,423.86/x
  3. Step 3: Cross multiply
    38,190.50x = 52,703.25 × 21,423.86
  4. Step 4: Simplify right side
    38,190.50x = 1,129,107,049.55
  5. Step 5: Solve for x
    x = 1,129,107,049.55/38,190.50
  6. Step 6: Final answer
    x = 29,565.13

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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.