Home / 20,348.43-28,084.91-13,992.27

Finding the Fourth Proportional to 20,348.43, 28,084.91 and 13,992.27

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Solution

The fourth proportional to 20,348.43, 28,084.91 and 13,992.27 is: 19,312.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.43 : 28,084.91 = 13,992.27 : x
  2. Step 2: Convert to fraction form
    20,348.43/28,084.91 = 13,992.27/x
  3. Step 3: Cross multiply
    20,348.43x = 28,084.91 × 13,992.27
  4. Step 4: Simplify right side
    20,348.43x = 392,971,573.68
  5. Step 5: Solve for x
    x = 392,971,573.68/20,348.43
  6. Step 6: Final answer
    x = 19,312.13

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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.