Home / 31,538.24-43,521.84-17,391.08

Finding the Fourth Proportional to 31,538.24, 43,521.84 and 17,391.08

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Solution

The fourth proportional to 31,538.24, 43,521.84 and 17,391.08 is: 23,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,538.24 : 43,521.84 = 17,391.08 : x
  2. Step 2: Convert to fraction form
    31,538.24/43,521.84 = 17,391.08/x
  3. Step 3: Cross multiply
    31,538.24x = 43,521.84 × 17,391.08
  4. Step 4: Simplify right side
    31,538.24x = 756,891,801.19
  5. Step 5: Solve for x
    x = 756,891,801.19/31,538.24
  6. Step 6: Final answer
    x = 23,999.18

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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.