Home / 39,388.96-59,017.76-28,278.96

Finding the Fourth Proportional to 39,388.96, 59,017.76 and 28,278.96

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Solution

The fourth proportional to 39,388.96, 59,017.76 and 28,278.96 is: 42,371.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,388.96 : 59,017.76 = 28,278.96 : x
  2. Step 2: Convert to fraction form
    39,388.96/59,017.76 = 28,278.96/x
  3. Step 3: Cross multiply
    39,388.96x = 59,017.76 × 28,278.96
  4. Step 4: Simplify right side
    39,388.96x = 1,668,960,874.33
  5. Step 5: Solve for x
    x = 1,668,960,874.33/39,388.96
  6. Step 6: Final answer
    x = 42,371.29

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1.5x scale

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.