Home / 38,243.10-52,776.15-21,248.90

Finding the Fourth Proportional to 38,243.10, 52,776.15 and 21,248.90

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Solution

The fourth proportional to 38,243.10, 52,776.15 and 21,248.90 is: 29,323.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,243.10 : 52,776.15 = 21,248.90 : x
  2. Step 2: Convert to fraction form
    38,243.10/52,776.15 = 21,248.90/x
  3. Step 3: Cross multiply
    38,243.10x = 52,776.15 × 21,248.90
  4. Step 4: Simplify right side
    38,243.10x = 1,121,435,133.74
  5. Step 5: Solve for x
    x = 1,121,435,133.74/38,243.10
  6. Step 6: Final answer
    x = 29,323.86

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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.