Home / 39,273.20-58,877.40-20,805.20

Finding the Fourth Proportional to 39,273.20, 58,877.40 and 20,805.20

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Solution

The fourth proportional to 39,273.20, 58,877.40 and 20,805.20 is: 31,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,273.20 : 58,877.40 = 20,805.20 : x
  2. Step 2: Convert to fraction form
    39,273.20/58,877.40 = 20,805.20/x
  3. Step 3: Cross multiply
    39,273.20x = 58,877.40 × 20,805.20
  4. Step 4: Simplify right side
    39,273.20x = 1,224,956,082.48
  5. Step 5: Solve for x
    x = 1,224,956,082.48/39,273.20
  6. Step 6: Final answer
    x = 31,190.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.