Home / 38,959.99-58,419.18-20,221.15

Finding the Fourth Proportional to 38,959.99, 58,419.18 and 20,221.15

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Solution

The fourth proportional to 38,959.99, 58,419.18 and 20,221.15 is: 30,320.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,959.99 : 58,419.18 = 20,221.15 : x
  2. Step 2: Convert to fraction form
    38,959.99/58,419.18 = 20,221.15/x
  3. Step 3: Cross multiply
    38,959.99x = 58,419.18 × 20,221.15
  4. Step 4: Simplify right side
    38,959.99x = 1,181,303,001.66
  5. Step 5: Solve for x
    x = 1,181,303,001.66/38,959.99
  6. Step 6: Final answer
    x = 30,320.93

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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.