Home / 31,390.97-43,322.58-17,964.14

Finding the Fourth Proportional to 31,390.97, 43,322.58 and 17,964.14

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Solution

The fourth proportional to 31,390.97, 43,322.58 and 17,964.14 is: 24,792.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,390.97 : 43,322.58 = 17,964.14 : x
  2. Step 2: Convert to fraction form
    31,390.97/43,322.58 = 17,964.14/x
  3. Step 3: Cross multiply
    31,390.97x = 43,322.58 × 17,964.14
  4. Step 4: Simplify right side
    31,390.97x = 778,252,675.67
  5. Step 5: Solve for x
    x = 778,252,675.67/31,390.97
  6. Step 6: Final answer
    x = 24,792.25

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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.