Home / 20,319.66-30,492.45-8,632.88

Finding the Fourth Proportional to 20,319.66, 30,492.45 and 8,632.88

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Solution

The fourth proportional to 20,319.66, 30,492.45 and 8,632.88 is: 12,954.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.66 : 30,492.45 = 8,632.88 : x
  2. Step 2: Convert to fraction form
    20,319.66/30,492.45 = 8,632.88/x
  3. Step 3: Cross multiply
    20,319.66x = 30,492.45 × 8,632.88
  4. Step 4: Simplify right side
    20,319.66x = 263,237,623.64
  5. Step 5: Solve for x
    x = 263,237,623.64/20,319.66
  6. Step 6: Final answer
    x = 12,954.82

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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.