Home / 31,440.75-43,388.64-17,294.10

Finding the Fourth Proportional to 31,440.75, 43,388.64 and 17,294.10

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Solution

The fourth proportional to 31,440.75, 43,388.64 and 17,294.10 is: 23,866.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.75 : 43,388.64 = 17,294.10 : x
  2. Step 2: Convert to fraction form
    31,440.75/43,388.64 = 17,294.10/x
  3. Step 3: Cross multiply
    31,440.75x = 43,388.64 × 17,294.10
  4. Step 4: Simplify right side
    31,440.75x = 750,367,479.02
  5. Step 5: Solve for x
    x = 750,367,479.02/31,440.75
  6. Step 6: Final answer
    x = 23,866.08

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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.