Home / 39,108.60-58,559.22-20,355.48

Finding the Fourth Proportional to 39,108.60, 58,559.22 and 20,355.48

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Solution

The fourth proportional to 39,108.60, 58,559.22 and 20,355.48 is: 30,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,108.60 : 58,559.22 = 20,355.48 : x
  2. Step 2: Convert to fraction form
    39,108.60/58,559.22 = 20,355.48/x
  3. Step 3: Cross multiply
    39,108.60x = 58,559.22 × 20,355.48
  4. Step 4: Simplify right side
    39,108.60x = 1,192,001,031.53
  5. Step 5: Solve for x
    x = 1,192,001,031.53/39,108.60
  6. Step 6: Final answer
    x = 30,479.26

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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.