Home / 25,405.04-38,124.76-8,989.04

Finding the Fourth Proportional to 25,405.04, 38,124.76 and 8,989.04

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Solution

The fourth proportional to 25,405.04, 38,124.76 and 8,989.04 is: 13,489.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,405.04 : 38,124.76 = 8,989.04 : x
  2. Step 2: Convert to fraction form
    25,405.04/38,124.76 = 8,989.04/x
  3. Step 3: Cross multiply
    25,405.04x = 38,124.76 × 8,989.04
  4. Step 4: Simplify right side
    25,405.04x = 342,704,992.63
  5. Step 5: Solve for x
    x = 342,704,992.63/25,405.04
  6. Step 6: Final answer
    x = 13,489.65

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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.