Home / 28,699.28-43,057.42-13,717.61

Finding the Fourth Proportional to 28,699.28, 43,057.42 and 13,717.61

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Solution

The fourth proportional to 28,699.28, 43,057.42 and 13,717.61 is: 20,580.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.28 : 43,057.42 = 13,717.61 : x
  2. Step 2: Convert to fraction form
    28,699.28/43,057.42 = 13,717.61/x
  3. Step 3: Cross multiply
    28,699.28x = 43,057.42 × 13,717.61
  4. Step 4: Simplify right side
    28,699.28x = 590,644,645.59
  5. Step 5: Solve for x
    x = 590,644,645.59/28,699.28
  6. Step 6: Final answer
    x = 20,580.47

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1.5x scale

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.