Home / 28,107.57-38,806.38-17,512.77

Finding the Fourth Proportional to 28,107.57, 38,806.38 and 17,512.77

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Solution

The fourth proportional to 28,107.57, 38,806.38 and 17,512.77 is: 24,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.57 : 38,806.38 = 17,512.77 : x
  2. Step 2: Convert to fraction form
    28,107.57/38,806.38 = 17,512.77/x
  3. Step 3: Cross multiply
    28,107.57x = 38,806.38 × 17,512.77
  4. Step 4: Simplify right side
    28,107.57x = 679,607,207.47
  5. Step 5: Solve for x
    x = 679,607,207.47/28,107.57
  6. Step 6: Final answer
    x = 24,178.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.