Home / 38,587.12-53,251.24-21,590.80

Finding the Fourth Proportional to 38,587.12, 53,251.24 and 21,590.80

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Solution

The fourth proportional to 38,587.12, 53,251.24 and 21,590.80 is: 29,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,587.12 : 53,251.24 = 21,590.80 : x
  2. Step 2: Convert to fraction form
    38,587.12/53,251.24 = 21,590.80/x
  3. Step 3: Cross multiply
    38,587.12x = 53,251.24 × 21,590.80
  4. Step 4: Simplify right side
    38,587.12x = 1,149,736,872.59
  5. Step 5: Solve for x
    x = 1,149,736,872.59/38,587.12
  6. Step 6: Final answer
    x = 29,795.87

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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.