Home / 28,780.88-43,169.33-17,689.28

Finding the Fourth Proportional to 28,780.88, 43,169.33 and 17,689.28

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Solution

The fourth proportional to 28,780.88, 43,169.33 and 17,689.28 is: 26,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.88 : 43,169.33 = 17,689.28 : x
  2. Step 2: Convert to fraction form
    28,780.88/43,169.33 = 17,689.28/x
  3. Step 3: Cross multiply
    28,780.88x = 43,169.33 × 17,689.28
  4. Step 4: Simplify right side
    28,780.88x = 763,634,194.16
  5. Step 5: Solve for x
    x = 763,634,194.16/28,780.88
  6. Step 6: Final answer
    x = 26,532.70

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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.