Home / 26,107.38-36,011.80-15,489.50

Finding the Fourth Proportional to 26,107.38, 36,011.80 and 15,489.50

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Solution

The fourth proportional to 26,107.38, 36,011.80 and 15,489.50 is: 21,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,107.38 : 36,011.80 = 15,489.50 : x
  2. Step 2: Convert to fraction form
    26,107.38/36,011.80 = 15,489.50/x
  3. Step 3: Cross multiply
    26,107.38x = 36,011.80 × 15,489.50
  4. Step 4: Simplify right side
    26,107.38x = 557,804,776.10
  5. Step 5: Solve for x
    x = 557,804,776.10/26,107.38
  6. Step 6: Final answer
    x = 21,365.79

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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.