Home / 31,172.04-43,016.67-18,425.07

Finding the Fourth Proportional to 31,172.04, 43,016.67 and 18,425.07

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Solution

The fourth proportional to 31,172.04, 43,016.67 and 18,425.07 is: 25,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,172.04 : 43,016.67 = 18,425.07 : x
  2. Step 2: Convert to fraction form
    31,172.04/43,016.67 = 18,425.07/x
  3. Step 3: Cross multiply
    31,172.04x = 43,016.67 × 18,425.07
  4. Step 4: Simplify right side
    31,172.04x = 792,585,155.92
  5. Step 5: Solve for x
    x = 792,585,155.92/31,172.04
  6. Step 6: Final answer
    x = 25,426.16

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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.