Home / 25,585.76-38,367.68-8,940.80

Finding the Fourth Proportional to 25,585.76, 38,367.68 and 8,940.80

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Solution

The fourth proportional to 25,585.76, 38,367.68 and 8,940.80 is: 13,407.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,585.76 : 38,367.68 = 8,940.80 : x
  2. Step 2: Convert to fraction form
    25,585.76/38,367.68 = 8,940.80/x
  3. Step 3: Cross multiply
    25,585.76x = 38,367.68 × 8,940.80
  4. Step 4: Simplify right side
    25,585.76x = 343,037,753.34
  5. Step 5: Solve for x
    x = 343,037,753.34/25,585.76
  6. Step 6: Final answer
    x = 13,407.37

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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.