Home / 40,138.51-55,394.28-22,235.23

Finding the Fourth Proportional to 40,138.51, 55,394.28 and 22,235.23

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Solution

The fourth proportional to 40,138.51, 55,394.28 and 22,235.23 is: 30,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.51 : 55,394.28 = 22,235.23 : x
  2. Step 2: Convert to fraction form
    40,138.51/55,394.28 = 22,235.23/x
  3. Step 3: Cross multiply
    40,138.51x = 55,394.28 × 22,235.23
  4. Step 4: Simplify right side
    40,138.51x = 1,231,704,556.48
  5. Step 5: Solve for x
    x = 1,231,704,556.48/40,138.51
  6. Step 6: Final answer
    x = 30,686.35

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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.