Home / 21,330.55-31,949.65-15,474.25

Finding the Fourth Proportional to 21,330.55, 31,949.65 and 15,474.25

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Solution

The fourth proportional to 21,330.55, 31,949.65 and 15,474.25 is: 23,177.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.55 : 31,949.65 = 15,474.25 : x
  2. Step 2: Convert to fraction form
    21,330.55/31,949.65 = 15,474.25/x
  3. Step 3: Cross multiply
    21,330.55x = 31,949.65 × 15,474.25
  4. Step 4: Simplify right side
    21,330.55x = 494,396,871.51
  5. Step 5: Solve for x
    x = 494,396,871.51/21,330.55
  6. Step 6: Final answer
    x = 23,177.88

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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.