Home / 36,221.76-54,294.48-20,605.68

Finding the Fourth Proportional to 36,221.76, 54,294.48 and 20,605.68

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Solution

The fourth proportional to 36,221.76, 54,294.48 and 20,605.68 is: 30,886.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,221.76 : 54,294.48 = 20,605.68 : x
  2. Step 2: Convert to fraction form
    36,221.76/54,294.48 = 20,605.68/x
  3. Step 3: Cross multiply
    36,221.76x = 54,294.48 × 20,605.68
  4. Step 4: Simplify right side
    36,221.76x = 1,118,774,680.65
  5. Step 5: Solve for x
    x = 1,118,774,680.65/36,221.76
  6. Step 6: Final answer
    x = 30,886.81

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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.