Home / 25,630.22-38,445.62-8,990.66

Finding the Fourth Proportional to 25,630.22, 38,445.62 and 8,990.66

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Solution

The fourth proportional to 25,630.22, 38,445.62 and 8,990.66 is: 13,486.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,630.22 : 38,445.62 = 8,990.66 : x
  2. Step 2: Convert to fraction form
    25,630.22/38,445.62 = 8,990.66/x
  3. Step 3: Cross multiply
    25,630.22x = 38,445.62 × 8,990.66
  4. Step 4: Simplify right side
    25,630.22x = 345,651,549.07
  5. Step 5: Solve for x
    x = 345,651,549.07/25,630.22
  6. Step 6: Final answer
    x = 13,486.09

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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.