Home / 26,972.87-40,480.47-18,711.02

Finding the Fourth Proportional to 26,972.87, 40,480.47 and 18,711.02

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Solution

The fourth proportional to 26,972.87, 40,480.47 and 18,711.02 is: 28,081.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,972.87 : 40,480.47 = 18,711.02 : x
  2. Step 2: Convert to fraction form
    26,972.87/40,480.47 = 18,711.02/x
  3. Step 3: Cross multiply
    26,972.87x = 40,480.47 × 18,711.02
  4. Step 4: Simplify right side
    26,972.87x = 757,430,681.38
  5. Step 5: Solve for x
    x = 757,430,681.38/26,972.87
  6. Step 6: Final answer
    x = 28,081.21

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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.