Home / 26,531.20-39,773.28-17,178.40

Finding the Fourth Proportional to 26,531.20, 39,773.28 and 17,178.40

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Solution

The fourth proportional to 26,531.20, 39,773.28 and 17,178.40 is: 25,752.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,531.20 : 39,773.28 = 17,178.40 : x
  2. Step 2: Convert to fraction form
    26,531.20/39,773.28 = 17,178.40/x
  3. Step 3: Cross multiply
    26,531.20x = 39,773.28 × 17,178.40
  4. Step 4: Simplify right side
    26,531.20x = 683,241,313.15
  5. Step 5: Solve for x
    x = 683,241,313.15/26,531.20
  6. Step 6: Final answer
    x = 25,752.37

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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.