Home / 25,531.80-38,298.90-8,002.20

Finding the Fourth Proportional to 25,531.80, 38,298.90 and 8,002.20

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Solution

The fourth proportional to 25,531.80, 38,298.90 and 8,002.20 is: 12,003.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,531.80 : 38,298.90 = 8,002.20 : x
  2. Step 2: Convert to fraction form
    25,531.80/38,298.90 = 8,002.20/x
  3. Step 3: Cross multiply
    25,531.80x = 38,298.90 × 8,002.20
  4. Step 4: Simplify right side
    25,531.80x = 306,475,457.58
  5. Step 5: Solve for x
    x = 306,475,457.58/25,531.80
  6. Step 6: Final answer
    x = 12,003.68

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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.