Home / 31,239.08-43,111.07-17,808.18

Finding the Fourth Proportional to 31,239.08, 43,111.07 and 17,808.18

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Solution

The fourth proportional to 31,239.08, 43,111.07 and 17,808.18 is: 24,575.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,239.08 : 43,111.07 = 17,808.18 : x
  2. Step 2: Convert to fraction form
    31,239.08/43,111.07 = 17,808.18/x
  3. Step 3: Cross multiply
    31,239.08x = 43,111.07 × 17,808.18
  4. Step 4: Simplify right side
    31,239.08x = 767,729,694.55
  5. Step 5: Solve for x
    x = 767,729,694.55/31,239.08
  6. Step 6: Final answer
    x = 24,575.94

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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.