Home / 31,666.67-43,696.18-18,242.27

Finding the Fourth Proportional to 31,666.67, 43,696.18 and 18,242.27

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Solution

The fourth proportional to 31,666.67, 43,696.18 and 18,242.27 is: 25,172.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,666.67 : 43,696.18 = 18,242.27 : x
  2. Step 2: Convert to fraction form
    31,666.67/43,696.18 = 18,242.27/x
  3. Step 3: Cross multiply
    31,666.67x = 43,696.18 × 18,242.27
  4. Step 4: Simplify right side
    31,666.67x = 797,117,513.53
  5. Step 5: Solve for x
    x = 797,117,513.53/31,666.67
  6. Step 6: Final answer
    x = 25,172.13

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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.