Home / 40,046.78-55,262.34-22,140.72

Finding the Fourth Proportional to 40,046.78, 55,262.34 and 22,140.72

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Solution

The fourth proportional to 40,046.78, 55,262.34 and 22,140.72 is: 30,552.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,046.78 : 55,262.34 = 22,140.72 : x
  2. Step 2: Convert to fraction form
    40,046.78/55,262.34 = 22,140.72/x
  3. Step 3: Cross multiply
    40,046.78x = 55,262.34 × 22,140.72
  4. Step 4: Simplify right side
    40,046.78x = 1,223,547,996.48
  5. Step 5: Solve for x
    x = 1,223,547,996.48/40,046.78
  6. Step 6: Final answer
    x = 30,552.97

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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.