Home / 31,403.55-43,336.40-17,256.09

Finding the Fourth Proportional to 31,403.55, 43,336.40 and 17,256.09

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Solution

The fourth proportional to 31,403.55, 43,336.40 and 17,256.09 is: 23,813.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,403.55 : 43,336.40 = 17,256.09 : x
  2. Step 2: Convert to fraction form
    31,403.55/43,336.40 = 17,256.09/x
  3. Step 3: Cross multiply
    31,403.55x = 43,336.40 × 17,256.09
  4. Step 4: Simplify right side
    31,403.55x = 747,816,732.40
  5. Step 5: Solve for x
    x = 747,816,732.40/31,403.55
  6. Step 6: Final answer
    x = 23,813.13

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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.