Home / 39,154.31-58,679.13-20,395.02

Finding the Fourth Proportional to 39,154.31, 58,679.13 and 20,395.02

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Solution

The fourth proportional to 39,154.31, 58,679.13 and 20,395.02 is: 30,565.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,154.31 : 58,679.13 = 20,395.02 : x
  2. Step 2: Convert to fraction form
    39,154.31/58,679.13 = 20,395.02/x
  3. Step 3: Cross multiply
    39,154.31x = 58,679.13 × 20,395.02
  4. Step 4: Simplify right side
    39,154.31x = 1,196,762,029.93
  5. Step 5: Solve for x
    x = 1,196,762,029.93/39,154.31
  6. Step 6: Final answer
    x = 30,565.27

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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.