Home / 31,755.57-43,812.70-18,325.06

Finding the Fourth Proportional to 31,755.57, 43,812.70 and 18,325.06

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Solution

The fourth proportional to 31,755.57, 43,812.70 and 18,325.06 is: 25,282.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,755.57 : 43,812.70 = 18,325.06 : x
  2. Step 2: Convert to fraction form
    31,755.57/43,812.70 = 18,325.06/x
  3. Step 3: Cross multiply
    31,755.57x = 43,812.70 × 18,325.06
  4. Step 4: Simplify right side
    31,755.57x = 802,870,356.26
  5. Step 5: Solve for x
    x = 802,870,356.26/31,755.57
  6. Step 6: Final answer
    x = 25,282.82

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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.