Home / 20,534.04-28,336.84-11,581.62

Finding the Fourth Proportional to 20,534.04, 28,336.84 and 11,581.62

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Solution

The fourth proportional to 20,534.04, 28,336.84 and 11,581.62 is: 15,982.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534.04 : 28,336.84 = 11,581.62 : x
  2. Step 2: Convert to fraction form
    20,534.04/28,336.84 = 11,581.62/x
  3. Step 3: Cross multiply
    20,534.04x = 28,336.84 × 11,581.62
  4. Step 4: Simplify right side
    20,534.04x = 328,186,377.66
  5. Step 5: Solve for x
    x = 328,186,377.66/20,534.04
  6. Step 6: Final answer
    x = 15,982.55

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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.