Home / 20,324.60-30,492.40-8,474.45

Finding the Fourth Proportional to 20,324.60, 30,492.40 and 8,474.45

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Solution

The fourth proportional to 20,324.60, 30,492.40 and 8,474.45 is: 12,713.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324.60 : 30,492.40 = 8,474.45 : x
  2. Step 2: Convert to fraction form
    20,324.60/30,492.40 = 8,474.45/x
  3. Step 3: Cross multiply
    20,324.60x = 30,492.40 × 8,474.45
  4. Step 4: Simplify right side
    20,324.60x = 258,406,374.22
  5. Step 5: Solve for x
    x = 258,406,374.22/20,324.60
  6. Step 6: Final answer
    x = 12,713.97

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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.