Home / 20,501.32-28,296.42-13,423.62

Finding the Fourth Proportional to 20,501.32, 28,296.42 and 13,423.62

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Solution

The fourth proportional to 20,501.32, 28,296.42 and 13,423.62 is: 18,527.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.32 : 28,296.42 = 13,423.62 : x
  2. Step 2: Convert to fraction form
    20,501.32/28,296.42 = 13,423.62/x
  3. Step 3: Cross multiply
    20,501.32x = 28,296.42 × 13,423.62
  4. Step 4: Simplify right side
    20,501.32x = 379,840,389.44
  5. Step 5: Solve for x
    x = 379,840,389.44/20,501.32
  6. Step 6: Final answer
    x = 18,527.61

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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.