Home / 15,344.70-21,188.97-14,557.38

Finding the Fourth Proportional to 15,344.70, 21,188.97 and 14,557.38

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Solution

The fourth proportional to 15,344.70, 21,188.97 and 14,557.38 is: 20,101.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,344.70 : 21,188.97 = 14,557.38 : x
  2. Step 2: Convert to fraction form
    15,344.70/21,188.97 = 14,557.38/x
  3. Step 3: Cross multiply
    15,344.70x = 21,188.97 × 14,557.38
  4. Step 4: Simplify right side
    15,344.70x = 308,455,888.10
  5. Step 5: Solve for x
    x = 308,455,888.10/15,344.70
  6. Step 6: Final answer
    x = 20,101.79

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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.