Home / 25,819.04-38,730.31-8,287.80

Finding the Fourth Proportional to 25,819.04, 38,730.31 and 8,287.80

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Solution

The fourth proportional to 25,819.04, 38,730.31 and 8,287.80 is: 12,432.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,819.04 : 38,730.31 = 8,287.80 : x
  2. Step 2: Convert to fraction form
    25,819.04/38,730.31 = 8,287.80/x
  3. Step 3: Cross multiply
    25,819.04x = 38,730.31 × 8,287.80
  4. Step 4: Simplify right side
    25,819.04x = 320,989,042.50
  5. Step 5: Solve for x
    x = 320,989,042.50/25,819.04
  6. Step 6: Final answer
    x = 12,432.26

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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.