Home / 17,977.53-24,812.19-13,721.61

Finding the Fourth Proportional to 17,977.53, 24,812.19 and 13,721.61

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Solution

The fourth proportional to 17,977.53, 24,812.19 and 13,721.61 is: 18,938.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,977.53 : 24,812.19 = 13,721.61 : x
  2. Step 2: Convert to fraction form
    17,977.53/24,812.19 = 13,721.61/x
  3. Step 3: Cross multiply
    17,977.53x = 24,812.19 × 13,721.61
  4. Step 4: Simplify right side
    17,977.53x = 340,463,194.43
  5. Step 5: Solve for x
    x = 340,463,194.43/17,977.53
  6. Step 6: Final answer
    x = 18,938.26

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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.