Home / 38,478.36-57,730.50-18,753.24

Finding the Fourth Proportional to 38,478.36, 57,730.50 and 18,753.24

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Solution

The fourth proportional to 38,478.36, 57,730.50 and 18,753.24 is: 28,136.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.36 : 57,730.50 = 18,753.24 : x
  2. Step 2: Convert to fraction form
    38,478.36/57,730.50 = 18,753.24/x
  3. Step 3: Cross multiply
    38,478.36x = 57,730.50 × 18,753.24
  4. Step 4: Simplify right side
    38,478.36x = 1,082,633,921.82
  5. Step 5: Solve for x
    x = 1,082,633,921.82/38,478.36
  6. Step 6: Final answer
    x = 28,136.18

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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.