Home / 31,389.18-43,318.02-17,242.02

Finding the Fourth Proportional to 31,389.18, 43,318.02 and 17,242.02

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Solution

The fourth proportional to 31,389.18, 43,318.02 and 17,242.02 is: 23,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.18 : 43,318.02 = 17,242.02 : x
  2. Step 2: Convert to fraction form
    31,389.18/43,318.02 = 17,242.02/x
  3. Step 3: Cross multiply
    31,389.18x = 43,318.02 × 17,242.02
  4. Step 4: Simplify right side
    31,389.18x = 746,890,167.20
  5. Step 5: Solve for x
    x = 746,890,167.20/31,389.18
  6. Step 6: Final answer
    x = 23,794.51

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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.