Home / 38,519.48-53,156.20-21,524.08

Finding the Fourth Proportional to 38,519.48, 53,156.20 and 21,524.08

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Solution

The fourth proportional to 38,519.48, 53,156.20 and 21,524.08 is: 29,702.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,519.48 : 53,156.20 = 21,524.08 : x
  2. Step 2: Convert to fraction form
    38,519.48/53,156.20 = 21,524.08/x
  3. Step 3: Cross multiply
    38,519.48x = 53,156.20 × 21,524.08
  4. Step 4: Simplify right side
    38,519.48x = 1,144,138,301.30
  5. Step 5: Solve for x
    x = 1,144,138,301.30/38,519.48
  6. Step 6: Final answer
    x = 29,702.85

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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.