Home / 28,168.86-38,873.55-16,230.18

Finding the Fourth Proportional to 28,168.86, 38,873.55 and 16,230.18

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Solution

The fourth proportional to 28,168.86, 38,873.55 and 16,230.18 is: 22,397.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.86 : 38,873.55 = 16,230.18 : x
  2. Step 2: Convert to fraction form
    28,168.86/38,873.55 = 16,230.18/x
  3. Step 3: Cross multiply
    28,168.86x = 38,873.55 × 16,230.18
  4. Step 4: Simplify right side
    28,168.86x = 630,924,713.74
  5. Step 5: Solve for x
    x = 630,924,713.74/28,168.86
  6. Step 6: Final answer
    x = 22,397.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.