Home / 40,299.90-60,421.05-18,095.10

Finding the Fourth Proportional to 40,299.90, 60,421.05 and 18,095.10

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Solution

The fourth proportional to 40,299.90, 60,421.05 and 18,095.10 is: 27,129.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,299.90 : 60,421.05 = 18,095.10 : x
  2. Step 2: Convert to fraction form
    40,299.90/60,421.05 = 18,095.10/x
  3. Step 3: Cross multiply
    40,299.90x = 60,421.05 × 18,095.10
  4. Step 4: Simplify right side
    40,299.90x = 1,093,324,941.86
  5. Step 5: Solve for x
    x = 1,093,324,941.86/40,299.90
  6. Step 6: Final answer
    x = 27,129.72

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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.