Home / 40,031.40-55,244.16-22,127.88

Finding the Fourth Proportional to 40,031.40, 55,244.16 and 22,127.88

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Solution

The fourth proportional to 40,031.40, 55,244.16 and 22,127.88 is: 30,536.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,031.40 : 55,244.16 = 22,127.88 : x
  2. Step 2: Convert to fraction form
    40,031.40/55,244.16 = 22,127.88/x
  3. Step 3: Cross multiply
    40,031.40x = 55,244.16 × 22,127.88
  4. Step 4: Simplify right side
    40,031.40x = 1,222,436,143.18
  5. Step 5: Solve for x
    x = 1,222,436,143.18/40,031.40
  6. Step 6: Final answer
    x = 30,536.93

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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.