Home / 40,386.40-55,734.72-22,480.64

Finding the Fourth Proportional to 40,386.40, 55,734.72 and 22,480.64

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Solution

The fourth proportional to 40,386.40, 55,734.72 and 22,480.64 is: 31,024.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,386.40 : 55,734.72 = 22,480.64 : x
  2. Step 2: Convert to fraction form
    40,386.40/55,734.72 = 22,480.64/x
  3. Step 3: Cross multiply
    40,386.40x = 55,734.72 × 22,480.64
  4. Step 4: Simplify right side
    40,386.40x = 1,252,952,175.82
  5. Step 5: Solve for x
    x = 1,252,952,175.82/40,386.40
  6. Step 6: Final answer
    x = 31,024.11

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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.