Home / 28,988.75-43,446.71-15,661.22

Finding the Fourth Proportional to 28,988.75, 43,446.71 and 15,661.22

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Solution

The fourth proportional to 28,988.75, 43,446.71 and 15,661.22 is: 23,472.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.75 : 43,446.71 = 15,661.22 : x
  2. Step 2: Convert to fraction form
    28,988.75/43,446.71 = 15,661.22/x
  3. Step 3: Cross multiply
    28,988.75x = 43,446.71 × 15,661.22
  4. Step 4: Simplify right side
    28,988.75x = 680,428,305.51
  5. Step 5: Solve for x
    x = 680,428,305.51/28,988.75
  6. Step 6: Final answer
    x = 23,472.15

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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.