Home / 38,310.72-52,869.60-21,549.12

Finding the Fourth Proportional to 38,310.72, 52,869.60 and 21,549.12

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Solution

The fourth proportional to 38,310.72, 52,869.60 and 21,549.12 is: 29,738.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,310.72 : 52,869.60 = 21,549.12 : x
  2. Step 2: Convert to fraction form
    38,310.72/52,869.60 = 21,549.12/x
  3. Step 3: Cross multiply
    38,310.72x = 52,869.60 × 21,549.12
  4. Step 4: Simplify right side
    38,310.72x = 1,139,293,354.75
  5. Step 5: Solve for x
    x = 1,139,293,354.75/38,310.72
  6. Step 6: Final answer
    x = 29,738.24

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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.