Home / 25,417.46-38,131.28-8,778.10

Finding the Fourth Proportional to 25,417.46, 38,131.28 and 8,778.10

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Solution

The fourth proportional to 25,417.46, 38,131.28 and 8,778.10 is: 13,168.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,417.46 : 38,131.28 = 8,778.10 : x
  2. Step 2: Convert to fraction form
    25,417.46/38,131.28 = 8,778.10/x
  3. Step 3: Cross multiply
    25,417.46x = 38,131.28 × 8,778.10
  4. Step 4: Simplify right side
    25,417.46x = 334,720,188.97
  5. Step 5: Solve for x
    x = 334,720,188.97/25,417.46
  6. Step 6: Final answer
    x = 13,168.91

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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.