Home / 15,352.92-21,171.18-14,459.80

Finding the Fourth Proportional to 15,352.92, 21,171.18 and 14,459.80

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Solution

The fourth proportional to 15,352.92, 21,171.18 and 14,459.80 is: 19,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,352.92 : 21,171.18 = 14,459.80 : x
  2. Step 2: Convert to fraction form
    15,352.92/21,171.18 = 14,459.80/x
  3. Step 3: Cross multiply
    15,352.92x = 21,171.18 × 14,459.80
  4. Step 4: Simplify right side
    15,352.92x = 306,131,028.56
  5. Step 5: Solve for x
    x = 306,131,028.56/15,352.92
  6. Step 6: Final answer
    x = 19,939.60

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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.