Home / 40,215.52-55,489.14-22,306.68

Finding the Fourth Proportional to 40,215.52, 55,489.14 and 22,306.68

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Solution

The fourth proportional to 40,215.52, 55,489.14 and 22,306.68 is: 30,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,215.52 : 55,489.14 = 22,306.68 : x
  2. Step 2: Convert to fraction form
    40,215.52/55,489.14 = 22,306.68/x
  3. Step 3: Cross multiply
    40,215.52x = 55,489.14 × 22,306.68
  4. Step 4: Simplify right side
    40,215.52x = 1,237,778,489.46
  5. Step 5: Solve for x
    x = 1,237,778,489.46/40,215.52
  6. Step 6: Final answer
    x = 30,778.63

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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.