Home / 38,869.01-53,641.96-21,874.89

Finding the Fourth Proportional to 38,869.01, 53,641.96 and 21,874.89

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Solution

The fourth proportional to 38,869.01, 53,641.96 and 21,874.89 is: 30,188.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,869.01 : 53,641.96 = 21,874.89 : x
  2. Step 2: Convert to fraction form
    38,869.01/53,641.96 = 21,874.89/x
  3. Step 3: Cross multiply
    38,869.01x = 53,641.96 × 21,874.89
  4. Step 4: Simplify right side
    38,869.01x = 1,173,412,243.90
  5. Step 5: Solve for x
    x = 1,173,412,243.90/38,869.01
  6. Step 6: Final answer
    x = 30,188.89

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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.