Home / 18,963.29-28,319.17-18,757.35

Finding the Fourth Proportional to 18,963.29, 28,319.17 and 18,757.35

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Solution

The fourth proportional to 18,963.29, 28,319.17 and 18,757.35 is: 28,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.29 : 28,319.17 = 18,757.35 : x
  2. Step 2: Convert to fraction form
    18,963.29/28,319.17 = 18,757.35/x
  3. Step 3: Cross multiply
    18,963.29x = 28,319.17 × 18,757.35
  4. Step 4: Simplify right side
    18,963.29x = 531,192,583.40
  5. Step 5: Solve for x
    x = 531,192,583.40/18,963.29
  6. Step 6: Final answer
    x = 28,011.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.