Home / 25,541.28-38,350.80-21,186.72

Finding the Fourth Proportional to 25,541.28, 38,350.80 and 21,186.72

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Solution

The fourth proportional to 25,541.28, 38,350.80 and 21,186.72 is: 31,812.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,541.28 : 38,350.80 = 21,186.72 : x
  2. Step 2: Convert to fraction form
    25,541.28/38,350.80 = 21,186.72/x
  3. Step 3: Cross multiply
    25,541.28x = 38,350.80 × 21,186.72
  4. Step 4: Simplify right side
    25,541.28x = 812,527,661.38
  5. Step 5: Solve for x
    x = 812,527,661.38/25,541.28
  6. Step 6: Final answer
    x = 31,812.33

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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.