Home / 25,251.55-34,869.56-15,707.79

Finding the Fourth Proportional to 25,251.55, 34,869.56 and 15,707.79

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Solution

The fourth proportional to 25,251.55, 34,869.56 and 15,707.79 is: 21,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,251.55 : 34,869.56 = 15,707.79 : x
  2. Step 2: Convert to fraction form
    25,251.55/34,869.56 = 15,707.79/x
  3. Step 3: Cross multiply
    25,251.55x = 34,869.56 × 15,707.79
  4. Step 4: Simplify right side
    25,251.55x = 547,723,725.87
  5. Step 5: Solve for x
    x = 547,723,725.87/25,251.55
  6. Step 6: Final answer
    x = 21,690.70

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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.