Home / 29,013.62-43,421.00-20,139.03

Finding the Fourth Proportional to 29,013.62, 43,421.00 and 20,139.03

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Solution

The fourth proportional to 29,013.62, 43,421.00 and 20,139.03 is: 30,139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,013.62 : 43,421.00 = 20,139.03 : x
  2. Step 2: Convert to fraction form
    29,013.62/43,421.00 = 20,139.03/x
  3. Step 3: Cross multiply
    29,013.62x = 43,421.00 × 20,139.03
  4. Step 4: Simplify right side
    29,013.62x = 874,456,720.93
  5. Step 5: Solve for x
    x = 874,456,720.93/29,013.62
  6. Step 6: Final answer
    x = 30,139.53

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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.