Home / 40,031.28-55,239.32-22,123.38

Finding the Fourth Proportional to 40,031.28, 55,239.32 and 22,123.38

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Solution

The fourth proportional to 40,031.28, 55,239.32 and 22,123.38 is: 30,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,031.28 : 55,239.32 = 22,123.38 : x
  2. Step 2: Convert to fraction form
    40,031.28/55,239.32 = 22,123.38/x
  3. Step 3: Cross multiply
    40,031.28x = 55,239.32 × 22,123.38
  4. Step 4: Simplify right side
    40,031.28x = 1,222,080,467.30
  5. Step 5: Solve for x
    x = 1,222,080,467.30/40,031.28
  6. Step 6: Final answer
    x = 30,528.14

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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.