Home / 37,128.20-55,686.90-10,830.20

Finding the Fourth Proportional to 37,128.20, 55,686.90 and 10,830.20

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Solution

The fourth proportional to 37,128.20, 55,686.90 and 10,830.20 is: 16,243.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,128.20 : 55,686.90 = 10,830.20 : x
  2. Step 2: Convert to fraction form
    37,128.20/55,686.90 = 10,830.20/x
  3. Step 3: Cross multiply
    37,128.20x = 55,686.90 × 10,830.20
  4. Step 4: Simplify right side
    37,128.20x = 603,100,264.38
  5. Step 5: Solve for x
    x = 603,100,264.38/37,128.20
  6. Step 6: Final answer
    x = 16,243.72

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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.