Home / 25,156.80-34,718.31-15,085.62

Finding the Fourth Proportional to 25,156.80, 34,718.31 and 15,085.62

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Solution

The fourth proportional to 25,156.80, 34,718.31 and 15,085.62 is: 20,819.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,156.80 : 34,718.31 = 15,085.62 : x
  2. Step 2: Convert to fraction form
    25,156.80/34,718.31 = 15,085.62/x
  3. Step 3: Cross multiply
    25,156.80x = 34,718.31 × 15,085.62
  4. Step 4: Simplify right side
    25,156.80x = 523,747,231.70
  5. Step 5: Solve for x
    x = 523,747,231.70/25,156.80
  6. Step 6: Final answer
    x = 20,819.31

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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.