Home / 16,915.54-25,336.15-13,947.20

Finding the Fourth Proportional to 16,915.54, 25,336.15 and 13,947.20

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Solution

The fourth proportional to 16,915.54, 25,336.15 and 13,947.20 is: 20,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,915.54 : 25,336.15 = 13,947.20 : x
  2. Step 2: Convert to fraction form
    16,915.54/25,336.15 = 13,947.20/x
  3. Step 3: Cross multiply
    16,915.54x = 25,336.15 × 13,947.20
  4. Step 4: Simplify right side
    16,915.54x = 353,368,351.28
  5. Step 5: Solve for x
    x = 353,368,351.28/16,915.54
  6. Step 6: Final answer
    x = 20,890.16

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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.