Home / 26,915.20-40,340.40-13,760.80

Finding the Fourth Proportional to 26,915.20, 40,340.40 and 13,760.80

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Solution

The fourth proportional to 26,915.20, 40,340.40 and 13,760.80 is: 20,624.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.20 : 40,340.40 = 13,760.80 : x
  2. Step 2: Convert to fraction form
    26,915.20/40,340.40 = 13,760.80/x
  3. Step 3: Cross multiply
    26,915.20x = 40,340.40 × 13,760.80
  4. Step 4: Simplify right side
    26,915.20x = 555,116,176.32
  5. Step 5: Solve for x
    x = 555,116,176.32/26,915.20
  6. Step 6: Final answer
    x = 20,624.64

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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.