Home / 31,403.64-43,336.80-17,256.36

Finding the Fourth Proportional to 31,403.64, 43,336.80 and 17,256.36

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Solution

The fourth proportional to 31,403.64, 43,336.80 and 17,256.36 is: 23,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,403.64 : 43,336.80 = 17,256.36 : x
  2. Step 2: Convert to fraction form
    31,403.64/43,336.80 = 17,256.36/x
  3. Step 3: Cross multiply
    31,403.64x = 43,336.80 × 17,256.36
  4. Step 4: Simplify right side
    31,403.64x = 747,835,422.05
  5. Step 5: Solve for x
    x = 747,835,422.05/31,403.64
  6. Step 6: Final answer
    x = 23,813.65

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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.