Home / 20,581.26-28,398.50-12,084.36

Finding the Fourth Proportional to 20,581.26, 28,398.50 and 12,084.36

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Solution

The fourth proportional to 20,581.26, 28,398.50 and 12,084.36 is: 16,674.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.26 : 28,398.50 = 12,084.36 : x
  2. Step 2: Convert to fraction form
    20,581.26/28,398.50 = 12,084.36/x
  3. Step 3: Cross multiply
    20,581.26x = 28,398.50 × 12,084.36
  4. Step 4: Simplify right side
    20,581.26x = 343,177,697.46
  5. Step 5: Solve for x
    x = 343,177,697.46/20,581.26
  6. Step 6: Final answer
    x = 16,674.28

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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.