Home / 31,304.99-43,205.31-19,372.17

Finding the Fourth Proportional to 31,304.99, 43,205.31 and 19,372.17

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Solution

The fourth proportional to 31,304.99, 43,205.31 and 19,372.17 is: 26,736.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,304.99 : 43,205.31 = 19,372.17 : x
  2. Step 2: Convert to fraction form
    31,304.99/43,205.31 = 19,372.17/x
  3. Step 3: Cross multiply
    31,304.99x = 43,205.31 × 19,372.17
  4. Step 4: Simplify right side
    31,304.99x = 836,980,345.77
  5. Step 5: Solve for x
    x = 836,980,345.77/31,304.99
  6. Step 6: Final answer
    x = 26,736.33

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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.