Home / 25,990.07-38,984.19-8,459.44

Finding the Fourth Proportional to 25,990.07, 38,984.19 and 8,459.44

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Solution

The fourth proportional to 25,990.07, 38,984.19 and 8,459.44 is: 12,688.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,990.07 : 38,984.19 = 8,459.44 : x
  2. Step 2: Convert to fraction form
    25,990.07/38,984.19 = 8,459.44/x
  3. Step 3: Cross multiply
    25,990.07x = 38,984.19 × 8,459.44
  4. Step 4: Simplify right side
    25,990.07x = 329,784,287.07
  5. Step 5: Solve for x
    x = 329,784,287.07/25,990.07
  6. Step 6: Final answer
    x = 12,688.86

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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.