Home / 40,031.76-55,243.29-22,127.09

Finding the Fourth Proportional to 40,031.76, 55,243.29 and 22,127.09

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Solution

The fourth proportional to 40,031.76, 55,243.29 and 22,127.09 is: 30,535.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,031.76 : 55,243.29 = 22,127.09 : x
  2. Step 2: Convert to fraction form
    40,031.76/55,243.29 = 22,127.09/x
  3. Step 3: Cross multiply
    40,031.76x = 55,243.29 × 22,127.09
  4. Step 4: Simplify right side
    40,031.76x = 1,222,372,973.51
  5. Step 5: Solve for x
    x = 1,222,372,973.51/40,031.76
  6. Step 6: Final answer
    x = 30,535.08

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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.