Home / 31,389.36-43,317.09-17,241.90

Finding the Fourth Proportional to 31,389.36, 43,317.09 and 17,241.90

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Solution

The fourth proportional to 31,389.36, 43,317.09 and 17,241.90 is: 23,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.36 : 43,317.09 = 17,241.90 : x
  2. Step 2: Convert to fraction form
    31,389.36/43,317.09 = 17,241.90/x
  3. Step 3: Cross multiply
    31,389.36x = 43,317.09 × 17,241.90
  4. Step 4: Simplify right side
    31,389.36x = 746,868,934.07
  5. Step 5: Solve for x
    x = 746,868,934.07/31,389.36
  6. Step 6: Final answer
    x = 23,793.70

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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.