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Finding the Fourth Proportional to 26,102.80, 39,121.80 and 23,316.40

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Solution

The fourth proportional to 26,102.80, 39,121.80 and 23,316.40 is: 34,945.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,102.80 : 39,121.80 = 23,316.40 : x
  2. Step 2: Convert to fraction form
    26,102.80/39,121.80 = 23,316.40/x
  3. Step 3: Cross multiply
    26,102.80x = 39,121.80 × 23,316.40
  4. Step 4: Simplify right side
    26,102.80x = 912,179,537.52
  5. Step 5: Solve for x
    x = 912,179,537.52/26,102.80
  6. Step 6: Final answer
    x = 34,945.66

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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.