Home / 47,504.56-65,545.68-28,379.20

Finding the Fourth Proportional to 47,504.56, 65,545.68 and 28,379.20

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Solution

The fourth proportional to 47,504.56, 65,545.68 and 28,379.20 is: 39,156.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,504.56 : 65,545.68 = 28,379.20 : x
  2. Step 2: Convert to fraction form
    47,504.56/65,545.68 = 28,379.20/x
  3. Step 3: Cross multiply
    47,504.56x = 65,545.68 × 28,379.20
  4. Step 4: Simplify right side
    47,504.56x = 1,860,133,961.86
  5. Step 5: Solve for x
    x = 1,860,133,961.86/47,504.56
  6. Step 6: Final answer
    x = 39,156.96

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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.