Home / 25,214.81-34,781.97-15,766.97

Finding the Fourth Proportional to 25,214.81, 34,781.97 and 15,766.97

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Solution

The fourth proportional to 25,214.81, 34,781.97 and 15,766.97 is: 21,749.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,214.81 : 34,781.97 = 15,766.97 : x
  2. Step 2: Convert to fraction form
    25,214.81/34,781.97 = 15,766.97/x
  3. Step 3: Cross multiply
    25,214.81x = 34,781.97 × 15,766.97
  4. Step 4: Simplify right side
    25,214.81x = 548,406,277.53
  5. Step 5: Solve for x
    x = 548,406,277.53/25,214.81
  6. Step 6: Final answer
    x = 21,749.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.