Home / 38,658.72-58,010.38-20,889.42

Finding the Fourth Proportional to 38,658.72, 58,010.38 and 20,889.42

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Solution

The fourth proportional to 38,658.72, 58,010.38 and 20,889.42 is: 31,346.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,658.72 : 58,010.38 = 20,889.42 : x
  2. Step 2: Convert to fraction form
    38,658.72/58,010.38 = 20,889.42/x
  3. Step 3: Cross multiply
    38,658.72x = 58,010.38 × 20,889.42
  4. Step 4: Simplify right side
    38,658.72x = 1,211,803,192.18
  5. Step 5: Solve for x
    x = 1,211,803,192.18/38,658.72
  6. Step 6: Final answer
    x = 31,346.18

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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.