Home / 57,474.12-86,211.06-15,921

Finding the Fourth Proportional to 57,474.12, 86,211.06 and 15,921

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Solution

The fourth proportional to 57,474.12, 86,211.06 and 15,921 is: 23,881.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,474.12 : 86,211.06 = 15,921 : x
  2. Step 2: Convert to fraction form
    57,474.12/86,211.06 = 15,921/x
  3. Step 3: Cross multiply
    57,474.12x = 86,211.06 × 15,921
  4. Step 4: Simplify right side
    57,474.12x = 1,372,566,286.26
  5. Step 5: Solve for x
    x = 1,372,566,286.26/57,474.12
  6. Step 6: Final answer
    x = 23,881.47

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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.