Home / 36,780.56-55,179.12-13,407.08

Finding the Fourth Proportional to 36,780.56, 55,179.12 and 13,407.08

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Solution

The fourth proportional to 36,780.56, 55,179.12 and 13,407.08 is: 20,113.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,780.56 : 55,179.12 = 13,407.08 : x
  2. Step 2: Convert to fraction form
    36,780.56/55,179.12 = 13,407.08/x
  3. Step 3: Cross multiply
    36,780.56x = 55,179.12 × 13,407.08
  4. Step 4: Simplify right side
    36,780.56x = 739,790,876.17
  5. Step 5: Solve for x
    x = 739,790,876.17/36,780.56
  6. Step 6: Final answer
    x = 20,113.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.