Home / 26,220.31-39,344.13-10,421.97

Finding the Fourth Proportional to 26,220.31, 39,344.13 and 10,421.97

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Solution

The fourth proportional to 26,220.31, 39,344.13 and 10,421.97 is: 15,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,220.31 : 39,344.13 = 10,421.97 : x
  2. Step 2: Convert to fraction form
    26,220.31/39,344.13 = 10,421.97/x
  3. Step 3: Cross multiply
    26,220.31x = 39,344.13 × 10,421.97
  4. Step 4: Simplify right side
    26,220.31x = 410,043,195.00
  5. Step 5: Solve for x
    x = 410,043,195.00/26,220.31
  6. Step 6: Final answer
    x = 15,638.38

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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.