Home / 26,581.25-36,665.88-15,818.90

Finding the Fourth Proportional to 26,581.25, 36,665.88 and 15,818.90

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Solution

The fourth proportional to 26,581.25, 36,665.88 and 15,818.90 is: 21,820.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,581.25 : 36,665.88 = 15,818.90 : x
  2. Step 2: Convert to fraction form
    26,581.25/36,665.88 = 15,818.90/x
  3. Step 3: Cross multiply
    26,581.25x = 36,665.88 × 15,818.90
  4. Step 4: Simplify right side
    26,581.25x = 580,013,705.80
  5. Step 5: Solve for x
    x = 580,013,705.80/26,581.25
  6. Step 6: Final answer
    x = 21,820.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.