Home / 39,921.08-59,882.19-19,139.72

Finding the Fourth Proportional to 39,921.08, 59,882.19 and 19,139.72

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Solution

The fourth proportional to 39,921.08, 59,882.19 and 19,139.72 is: 28,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921.08 : 59,882.19 = 19,139.72 : x
  2. Step 2: Convert to fraction form
    39,921.08/59,882.19 = 19,139.72/x
  3. Step 3: Cross multiply
    39,921.08x = 59,882.19 × 19,139.72
  4. Step 4: Simplify right side
    39,921.08x = 1,146,128,349.59
  5. Step 5: Solve for x
    x = 1,146,128,349.59/39,921.08
  6. Step 6: Final answer
    x = 28,709.85

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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.