Home / 25,099.40-34,652.18-15,680.72

Finding the Fourth Proportional to 25,099.40, 34,652.18 and 15,680.72

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Solution

The fourth proportional to 25,099.40, 34,652.18 and 15,680.72 is: 21,648.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,099.40 : 34,652.18 = 15,680.72 : x
  2. Step 2: Convert to fraction form
    25,099.40/34,652.18 = 15,680.72/x
  3. Step 3: Cross multiply
    25,099.40x = 34,652.18 × 15,680.72
  4. Step 4: Simplify right side
    25,099.40x = 543,371,131.97
  5. Step 5: Solve for x
    x = 543,371,131.97/25,099.40
  6. Step 6: Final answer
    x = 21,648.77

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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.