Home / 33,138.80-45,731.52-18,031.43

Finding the Fourth Proportional to 33,138.80, 45,731.52 and 18,031.43

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Solution

The fourth proportional to 33,138.80, 45,731.52 and 18,031.43 is: 24,883.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.80 : 45,731.52 = 18,031.43 : x
  2. Step 2: Convert to fraction form
    33,138.80/45,731.52 = 18,031.43/x
  3. Step 3: Cross multiply
    33,138.80x = 45,731.52 × 18,031.43
  4. Step 4: Simplify right side
    33,138.80x = 824,604,701.67
  5. Step 5: Solve for x
    x = 824,604,701.67/33,138.80
  6. Step 6: Final answer
    x = 24,883.36

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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.