Home / 38,115.60-52,600.08-21,348.72

Finding the Fourth Proportional to 38,115.60, 52,600.08 and 21,348.72

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Solution

The fourth proportional to 38,115.60, 52,600.08 and 21,348.72 is: 29,461.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115.60 : 52,600.08 = 21,348.72 : x
  2. Step 2: Convert to fraction form
    38,115.60/52,600.08 = 21,348.72/x
  3. Step 3: Cross multiply
    38,115.60x = 52,600.08 × 21,348.72
  4. Step 4: Simplify right side
    38,115.60x = 1,122,944,379.90
  5. Step 5: Solve for x
    x = 1,122,944,379.90/38,115.60
  6. Step 6: Final answer
    x = 29,461.54

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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.