Home / 38,020.85-56,991.18-15,811.87

Finding the Fourth Proportional to 38,020.85, 56,991.18 and 15,811.87

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Solution

The fourth proportional to 38,020.85, 56,991.18 and 15,811.87 is: 23,701.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,020.85 : 56,991.18 = 15,811.87 : x
  2. Step 2: Convert to fraction form
    38,020.85/56,991.18 = 15,811.87/x
  3. Step 3: Cross multiply
    38,020.85x = 56,991.18 × 15,811.87
  4. Step 4: Simplify right side
    38,020.85x = 901,137,129.31
  5. Step 5: Solve for x
    x = 901,137,129.31/38,020.85
  6. Step 6: Final answer
    x = 23,701.13

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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.