Home / 31,356.07-43,269.64-17,207.80

Finding the Fourth Proportional to 31,356.07, 43,269.64 and 17,207.80

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Solution

The fourth proportional to 31,356.07, 43,269.64 and 17,207.80 is: 23,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,356.07 : 43,269.64 = 17,207.80 : x
  2. Step 2: Convert to fraction form
    31,356.07/43,269.64 = 17,207.80/x
  3. Step 3: Cross multiply
    31,356.07x = 43,269.64 × 17,207.80
  4. Step 4: Simplify right side
    31,356.07x = 744,575,311.19
  5. Step 5: Solve for x
    x = 744,575,311.19/31,356.07
  6. Step 6: Final answer
    x = 23,745.81

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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.