Home / 20,733-28,612.28-11,780.88

Finding the Fourth Proportional to 20,733, 28,612.28 and 11,780.88

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Solution

The fourth proportional to 20,733, 28,612.28 and 11,780.88 is: 16,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733 : 28,612.28 = 11,780.88 : x
  2. Step 2: Convert to fraction form
    20,733/28,612.28 = 11,780.88/x
  3. Step 3: Cross multiply
    20,733x = 28,612.28 × 11,780.88
  4. Step 4: Simplify right side
    20,733x = 337,077,837.21
  5. Step 5: Solve for x
    x = 337,077,837.21/20,733
  6. Step 6: Final answer
    x = 16,258.03

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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.