Home / 26,491.53-36,542.11-15,729.11

Finding the Fourth Proportional to 26,491.53, 36,542.11 and 15,729.11

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Solution

The fourth proportional to 26,491.53, 36,542.11 and 15,729.11 is: 21,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,491.53 : 36,542.11 = 15,729.11 : x
  2. Step 2: Convert to fraction form
    26,491.53/36,542.11 = 15,729.11/x
  3. Step 3: Cross multiply
    26,491.53x = 36,542.11 × 15,729.11
  4. Step 4: Simplify right side
    26,491.53x = 574,774,867.82
  5. Step 5: Solve for x
    x = 574,774,867.82/26,491.53
  6. Step 6: Final answer
    x = 21,696.55

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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.