Home / 25,336.80-38,005.20-8,715.60

Finding the Fourth Proportional to 25,336.80, 38,005.20 and 8,715.60

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Solution

The fourth proportional to 25,336.80, 38,005.20 and 8,715.60 is: 13,073.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,336.80 : 38,005.20 = 8,715.60 : x
  2. Step 2: Convert to fraction form
    25,336.80/38,005.20 = 8,715.60/x
  3. Step 3: Cross multiply
    25,336.80x = 38,005.20 × 8,715.60
  4. Step 4: Simplify right side
    25,336.80x = 331,238,121.12
  5. Step 5: Solve for x
    x = 331,238,121.12/25,336.80
  6. Step 6: Final answer
    x = 13,073.40

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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.