Home / 38,777.80-58,132.68-20,018.20

Finding the Fourth Proportional to 38,777.80, 58,132.68 and 20,018.20

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Solution

The fourth proportional to 38,777.80, 58,132.68 and 20,018.20 is: 30,009.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,777.80 : 58,132.68 = 20,018.20 : x
  2. Step 2: Convert to fraction form
    38,777.80/58,132.68 = 20,018.20/x
  3. Step 3: Cross multiply
    38,777.80x = 58,132.68 × 20,018.20
  4. Step 4: Simplify right side
    38,777.80x = 1,163,711,614.78
  5. Step 5: Solve for x
    x = 1,163,711,614.78/38,777.80
  6. Step 6: Final answer
    x = 30,009.74

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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.