Home / 26,758.10-36,922.68-15,428.02

Finding the Fourth Proportional to 26,758.10, 36,922.68 and 15,428.02

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Solution

The fourth proportional to 26,758.10, 36,922.68 and 15,428.02 is: 21,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,758.10 : 36,922.68 = 15,428.02 : x
  2. Step 2: Convert to fraction form
    26,758.10/36,922.68 = 15,428.02/x
  3. Step 3: Cross multiply
    26,758.10x = 36,922.68 × 15,428.02
  4. Step 4: Simplify right side
    26,758.10x = 569,643,845.49
  5. Step 5: Solve for x
    x = 569,643,845.49/26,758.10
  6. Step 6: Final answer
    x = 21,288.65

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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.