Home / 36,498.45-54,765.90-20,715.60

Finding the Fourth Proportional to 36,498.45, 54,765.90 and 20,715.60

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Solution

The fourth proportional to 36,498.45, 54,765.90 and 20,715.60 is: 31,083.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,498.45 : 54,765.90 = 20,715.60 : x
  2. Step 2: Convert to fraction form
    36,498.45/54,765.90 = 20,715.60/x
  3. Step 3: Cross multiply
    36,498.45x = 54,765.90 × 20,715.60
  4. Step 4: Simplify right side
    36,498.45x = 1,134,508,478.04
  5. Step 5: Solve for x
    x = 1,134,508,478.04/36,498.45
  6. Step 6: Final answer
    x = 31,083.74

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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.