Home / 29,290.93-40,421.27-15,861.87

Finding the Fourth Proportional to 29,290.93, 40,421.27 and 15,861.87

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Solution

The fourth proportional to 29,290.93, 40,421.27 and 15,861.87 is: 21,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,290.93 : 40,421.27 = 15,861.87 : x
  2. Step 2: Convert to fraction form
    29,290.93/40,421.27 = 15,861.87/x
  3. Step 3: Cross multiply
    29,290.93x = 40,421.27 × 15,861.87
  4. Step 4: Simplify right side
    29,290.93x = 641,156,929.97
  5. Step 5: Solve for x
    x = 641,156,929.97/29,290.93
  6. Step 6: Final answer
    x = 21,889.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.