Home / 18,943.98-28,424.16-10,168.63

Finding the Fourth Proportional to 18,943.98, 28,424.16 and 10,168.63

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Solution

The fourth proportional to 18,943.98, 28,424.16 and 10,168.63 is: 15,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.98 : 28,424.16 = 10,168.63 : x
  2. Step 2: Convert to fraction form
    18,943.98/28,424.16 = 10,168.63/x
  3. Step 3: Cross multiply
    18,943.98x = 28,424.16 × 10,168.63
  4. Step 4: Simplify right side
    18,943.98x = 289,034,766.10
  5. Step 5: Solve for x
    x = 289,034,766.10/18,943.98
  6. Step 6: Final answer
    x = 15,257.35

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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.