Home / 20,532.83-28,336.26-11,580.14

Finding the Fourth Proportional to 20,532.83, 28,336.26 and 11,580.14

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Solution

The fourth proportional to 20,532.83, 28,336.26 and 11,580.14 is: 15,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,532.83 : 28,336.26 = 11,580.14 : x
  2. Step 2: Convert to fraction form
    20,532.83/28,336.26 = 11,580.14/x
  3. Step 3: Cross multiply
    20,532.83x = 28,336.26 × 11,580.14
  4. Step 4: Simplify right side
    20,532.83x = 328,137,716.20
  5. Step 5: Solve for x
    x = 328,137,716.20/20,532.83
  6. Step 6: Final answer
    x = 15,981.13

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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.