Home / 29,128.01-43,684.80-12,486.15

Finding the Fourth Proportional to 29,128.01, 43,684.80 and 12,486.15

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Solution

The fourth proportional to 29,128.01, 43,684.80 and 12,486.15 is: 18,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.01 : 43,684.80 = 12,486.15 : x
  2. Step 2: Convert to fraction form
    29,128.01/43,684.80 = 12,486.15/x
  3. Step 3: Cross multiply
    29,128.01x = 43,684.80 × 12,486.15
  4. Step 4: Simplify right side
    29,128.01x = 545,454,965.52
  5. Step 5: Solve for x
    x = 545,454,965.52/29,128.01
  6. Step 6: Final answer
    x = 18,726.14

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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.