Home / 39,956.76-55,134.90-22,959.72

Finding the Fourth Proportional to 39,956.76, 55,134.90 and 22,959.72

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Solution

The fourth proportional to 39,956.76, 55,134.90 and 22,959.72 is: 31,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,956.76 : 55,134.90 = 22,959.72 : x
  2. Step 2: Convert to fraction form
    39,956.76/55,134.90 = 22,959.72/x
  3. Step 3: Cross multiply
    39,956.76x = 55,134.90 × 22,959.72
  4. Step 4: Simplify right side
    39,956.76x = 1,265,881,866.23
  5. Step 5: Solve for x
    x = 1,265,881,866.23/39,956.76
  6. Step 6: Final answer
    x = 31,681.29

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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.