Home / 38,996.90-58,499.92-13,688.68

Finding the Fourth Proportional to 38,996.90, 58,499.92 and 13,688.68

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Solution

The fourth proportional to 38,996.90, 58,499.92 and 13,688.68 is: 20,534.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,996.90 : 58,499.92 = 13,688.68 : x
  2. Step 2: Convert to fraction form
    38,996.90/58,499.92 = 13,688.68/x
  3. Step 3: Cross multiply
    38,996.90x = 58,499.92 × 13,688.68
  4. Step 4: Simplify right side
    38,996.90x = 800,786,684.91
  5. Step 5: Solve for x
    x = 800,786,684.91/38,996.90
  6. Step 6: Final answer
    x = 20,534.62

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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.