Home / 40,810.68-61,216.41-12,347.86

Finding the Fourth Proportional to 40,810.68, 61,216.41 and 12,347.86

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Solution

The fourth proportional to 40,810.68, 61,216.41 and 12,347.86 is: 18,521.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,810.68 : 61,216.41 = 12,347.86 : x
  2. Step 2: Convert to fraction form
    40,810.68/61,216.41 = 12,347.86/x
  3. Step 3: Cross multiply
    40,810.68x = 61,216.41 × 12,347.86
  4. Step 4: Simplify right side
    40,810.68x = 755,891,660.38
  5. Step 5: Solve for x
    x = 755,891,660.38/40,810.68
  6. Step 6: Final answer
    x = 18,521.91

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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.