Home / 40,031.40-55,244.48-22,128.08

Finding the Fourth Proportional to 40,031.40, 55,244.48 and 22,128.08

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Solution

The fourth proportional to 40,031.40, 55,244.48 and 22,128.08 is: 30,537.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,031.40 : 55,244.48 = 22,128.08 : x
  2. Step 2: Convert to fraction form
    40,031.40/55,244.48 = 22,128.08/x
  3. Step 3: Cross multiply
    40,031.40x = 55,244.48 × 22,128.08
  4. Step 4: Simplify right side
    40,031.40x = 1,222,453,886.14
  5. Step 5: Solve for x
    x = 1,222,453,886.14/40,031.40
  6. Step 6: Final answer
    x = 30,537.38

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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.