Home / 20,924.45-28,882.14-12,427.96

Finding the Fourth Proportional to 20,924.45, 28,882.14 and 12,427.96

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Solution

The fourth proportional to 20,924.45, 28,882.14 and 12,427.96 is: 17,154.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.45 : 28,882.14 = 12,427.96 : x
  2. Step 2: Convert to fraction form
    20,924.45/28,882.14 = 12,427.96/x
  3. Step 3: Cross multiply
    20,924.45x = 28,882.14 × 12,427.96
  4. Step 4: Simplify right side
    20,924.45x = 358,946,008.43
  5. Step 5: Solve for x
    x = 358,946,008.43/20,924.45
  6. Step 6: Final answer
    x = 17,154.38

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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.