Home / 40,031.70-55,243.74-21,882.49

Finding the Fourth Proportional to 40,031.70, 55,243.74 and 21,882.49

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Solution

The fourth proportional to 40,031.70, 55,243.74 and 21,882.49 is: 30,197.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,031.70 : 55,243.74 = 21,882.49 : x
  2. Step 2: Convert to fraction form
    40,031.70/55,243.74 = 21,882.49/x
  3. Step 3: Cross multiply
    40,031.70x = 55,243.74 × 21,882.49
  4. Step 4: Simplify right side
    40,031.70x = 1,208,870,739.23
  5. Step 5: Solve for x
    x = 1,208,870,739.23/40,031.70
  6. Step 6: Final answer
    x = 30,197.84

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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.