Home / 26,531.97-36,619.32-15,209.05

Finding the Fourth Proportional to 26,531.97, 36,619.32 and 15,209.05

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Solution

The fourth proportional to 26,531.97, 36,619.32 and 15,209.05 is: 20,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,531.97 : 36,619.32 = 15,209.05 : x
  2. Step 2: Convert to fraction form
    26,531.97/36,619.32 = 15,209.05/x
  3. Step 3: Cross multiply
    26,531.97x = 36,619.32 × 15,209.05
  4. Step 4: Simplify right side
    26,531.97x = 556,945,068.85
  5. Step 5: Solve for x
    x = 556,945,068.85/26,531.97
  6. Step 6: Final answer
    x = 20,991.47

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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.