Home / 27,438.10-41,128.80-14,931.70

Finding the Fourth Proportional to 27,438.10, 41,128.80 and 14,931.70

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Solution

The fourth proportional to 27,438.10, 41,128.80 and 14,931.70 is: 22,382.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,438.10 : 41,128.80 = 14,931.70 : x
  2. Step 2: Convert to fraction form
    27,438.10/41,128.80 = 14,931.70/x
  3. Step 3: Cross multiply
    27,438.10x = 41,128.80 × 14,931.70
  4. Step 4: Simplify right side
    27,438.10x = 614,122,902.96
  5. Step 5: Solve for x
    x = 614,122,902.96/27,438.10
  6. Step 6: Final answer
    x = 22,382.12

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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.