Home / 39,719.73-59,587.29-13,428.75

Finding the Fourth Proportional to 39,719.73, 59,587.29 and 13,428.75

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Solution

The fourth proportional to 39,719.73, 59,587.29 and 13,428.75 is: 20,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,719.73 : 59,587.29 = 13,428.75 : x
  2. Step 2: Convert to fraction form
    39,719.73/59,587.29 = 13,428.75/x
  3. Step 3: Cross multiply
    39,719.73x = 59,587.29 × 13,428.75
  4. Step 4: Simplify right side
    39,719.73x = 800,182,820.59
  5. Step 5: Solve for x
    x = 800,182,820.59/39,719.73
  6. Step 6: Final answer
    x = 20,145.73

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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.