Home / 29,031.12-43,472.82-19,140.39

Finding the Fourth Proportional to 29,031.12, 43,472.82 and 19,140.39

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Solution

The fourth proportional to 29,031.12, 43,472.82 and 19,140.39 is: 28,661.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,031.12 : 43,472.82 = 19,140.39 : x
  2. Step 2: Convert to fraction form
    29,031.12/43,472.82 = 19,140.39/x
  3. Step 3: Cross multiply
    29,031.12x = 43,472.82 × 19,140.39
  4. Step 4: Simplify right side
    29,031.12x = 832,086,729.20
  5. Step 5: Solve for x
    x = 832,086,729.20/29,031.12
  6. Step 6: Final answer
    x = 28,661.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.