Home / 26,040.65-39,008.72-11,981.09

Finding the Fourth Proportional to 26,040.65, 39,008.72 and 11,981.09

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Solution

The fourth proportional to 26,040.65, 39,008.72 and 11,981.09 is: 17,947.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,040.65 : 39,008.72 = 11,981.09 : x
  2. Step 2: Convert to fraction form
    26,040.65/39,008.72 = 11,981.09/x
  3. Step 3: Cross multiply
    26,040.65x = 39,008.72 × 11,981.09
  4. Step 4: Simplify right side
    26,040.65x = 467,366,820.01
  5. Step 5: Solve for x
    x = 467,366,820.01/26,040.65
  6. Step 6: Final answer
    x = 17,947.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.