Home / 26,006.60-38,945.10-20,822.60

Finding the Fourth Proportional to 26,006.60, 38,945.10 and 20,822.60

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Solution

The fourth proportional to 26,006.60, 38,945.10 and 20,822.60 is: 31,182.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,006.60 : 38,945.10 = 20,822.60 : x
  2. Step 2: Convert to fraction form
    26,006.60/38,945.10 = 20,822.60/x
  3. Step 3: Cross multiply
    26,006.60x = 38,945.10 × 20,822.60
  4. Step 4: Simplify right side
    26,006.60x = 810,938,239.26
  5. Step 5: Solve for x
    x = 810,938,239.26/26,006.60
  6. Step 6: Final answer
    x = 31,182.02

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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.