Home / 38,776.80-58,131.18-20,017.20

Finding the Fourth Proportional to 38,776.80, 58,131.18 and 20,017.20

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Solution

The fourth proportional to 38,776.80, 58,131.18 and 20,017.20 is: 30,008.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,776.80 : 58,131.18 = 20,017.20 : x
  2. Step 2: Convert to fraction form
    38,776.80/58,131.18 = 20,017.20/x
  3. Step 3: Cross multiply
    38,776.80x = 58,131.18 × 20,017.20
  4. Step 4: Simplify right side
    38,776.80x = 1,163,623,456.30
  5. Step 5: Solve for x
    x = 1,163,623,456.30/38,776.80
  6. Step 6: Final answer
    x = 30,008.24

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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.