Home / 25,778.12-38,660.88-8,244.32

Finding the Fourth Proportional to 25,778.12, 38,660.88 and 8,244.32

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Solution

The fourth proportional to 25,778.12, 38,660.88 and 8,244.32 is: 12,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,778.12 : 38,660.88 = 8,244.32 : x
  2. Step 2: Convert to fraction form
    25,778.12/38,660.88 = 8,244.32/x
  3. Step 3: Cross multiply
    25,778.12x = 38,660.88 × 8,244.32
  4. Step 4: Simplify right side
    25,778.12x = 318,732,666.20
  5. Step 5: Solve for x
    x = 318,732,666.20/25,778.12
  6. Step 6: Final answer
    x = 12,364.47

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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.