Home / 31,538.64-43,525.20-17,391.40

Finding the Fourth Proportional to 31,538.64, 43,525.20 and 17,391.40

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Solution

The fourth proportional to 31,538.64, 43,525.20 and 17,391.40 is: 24,001.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,538.64 : 43,525.20 = 17,391.40 : x
  2. Step 2: Convert to fraction form
    31,538.64/43,525.20 = 17,391.40/x
  3. Step 3: Cross multiply
    31,538.64x = 43,525.20 × 17,391.40
  4. Step 4: Simplify right side
    31,538.64x = 756,964,163.28
  5. Step 5: Solve for x
    x = 756,964,163.28/31,538.64
  6. Step 6: Final answer
    x = 24,001.17

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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.