Home / 38,777.20-58,171.30-12,475.82

Finding the Fourth Proportional to 38,777.20, 58,171.30 and 12,475.82

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Solution

The fourth proportional to 38,777.20, 58,171.30 and 12,475.82 is: 18,715.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,777.20 : 58,171.30 = 12,475.82 : x
  2. Step 2: Convert to fraction form
    38,777.20/58,171.30 = 12,475.82/x
  3. Step 3: Cross multiply
    38,777.20x = 58,171.30 × 12,475.82
  4. Step 4: Simplify right side
    38,777.20x = 725,734,782.20
  5. Step 5: Solve for x
    x = 725,734,782.20/38,777.20
  6. Step 6: Final answer
    x = 18,715.50

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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.