Home / 15,949.67-23,924.47-5,420.78

Finding the Fourth Proportional to 15,949.67, 23,924.47 and 5,420.78

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Solution

The fourth proportional to 15,949.67, 23,924.47 and 5,420.78 is: 8,131.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,949.67 : 23,924.47 = 5,420.78 : x
  2. Step 2: Convert to fraction form
    15,949.67/23,924.47 = 5,420.78/x
  3. Step 3: Cross multiply
    15,949.67x = 23,924.47 × 5,420.78
  4. Step 4: Simplify right side
    15,949.67x = 129,689,288.49
  5. Step 5: Solve for x
    x = 129,689,288.49/15,949.67
  6. Step 6: Final answer
    x = 8,131.16

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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.