Home / 39,956.40-55,139.76-22,052.64

Finding the Fourth Proportional to 39,956.40, 55,139.76 and 22,052.64

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Solution

The fourth proportional to 39,956.40, 55,139.76 and 22,052.64 is: 30,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,956.40 : 55,139.76 = 22,052.64 : x
  2. Step 2: Convert to fraction form
    39,956.40/55,139.76 = 22,052.64/x
  3. Step 3: Cross multiply
    39,956.40x = 55,139.76 × 22,052.64
  4. Step 4: Simplify right side
    39,956.40x = 1,215,977,276.97
  5. Step 5: Solve for x
    x = 1,215,977,276.97/39,956.40
  6. Step 6: Final answer
    x = 30,432.60

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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.