Home / 37,128.40-55,649.40-14,930.80

Finding the Fourth Proportional to 37,128.40, 55,649.40 and 14,930.80

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Solution

The fourth proportional to 37,128.40, 55,649.40 and 14,930.80 is: 22,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,128.40 : 55,649.40 = 14,930.80 : x
  2. Step 2: Convert to fraction form
    37,128.40/55,649.40 = 14,930.80/x
  3. Step 3: Cross multiply
    37,128.40x = 55,649.40 × 14,930.80
  4. Step 4: Simplify right side
    37,128.40x = 830,890,061.52
  5. Step 5: Solve for x
    x = 830,890,061.52/37,128.40
  6. Step 6: Final answer
    x = 22,378.83

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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.