Home / 31,747-43,810.62-18,317.08

Finding the Fourth Proportional to 31,747, 43,810.62 and 18,317.08

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Solution

The fourth proportional to 31,747, 43,810.62 and 18,317.08 is: 25,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,747 : 43,810.62 = 18,317.08 : x
  2. Step 2: Convert to fraction form
    31,747/43,810.62 = 18,317.08/x
  3. Step 3: Cross multiply
    31,747x = 43,810.62 × 18,317.08
  4. Step 4: Simplify right side
    31,747x = 802,482,631.39
  5. Step 5: Solve for x
    x = 802,482,631.39/31,747
  6. Step 6: Final answer
    x = 25,277.43

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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.