Home / 25,455.28-38,167.40-11,412.72

Finding the Fourth Proportional to 25,455.28, 38,167.40 and 11,412.72

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Solution

The fourth proportional to 25,455.28, 38,167.40 and 11,412.72 is: 17,112.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,455.28 : 38,167.40 = 11,412.72 : x
  2. Step 2: Convert to fraction form
    25,455.28/38,167.40 = 11,412.72/x
  3. Step 3: Cross multiply
    25,455.28x = 38,167.40 × 11,412.72
  4. Step 4: Simplify right side
    25,455.28x = 435,593,849.33
  5. Step 5: Solve for x
    x = 435,593,849.33/25,455.28
  6. Step 6: Final answer
    x = 17,112.12

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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.