Home / 28,937.46-39,921.94-18,862.38

Finding the Fourth Proportional to 28,937.46, 39,921.94 and 18,862.38

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Solution

The fourth proportional to 28,937.46, 39,921.94 and 18,862.38 is: 26,022.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,937.46 : 39,921.94 = 18,862.38 : x
  2. Step 2: Convert to fraction form
    28,937.46/39,921.94 = 18,862.38/x
  3. Step 3: Cross multiply
    28,937.46x = 39,921.94 × 18,862.38
  4. Step 4: Simplify right side
    28,937.46x = 753,022,802.62
  5. Step 5: Solve for x
    x = 753,022,802.62/28,937.46
  6. Step 6: Final answer
    x = 26,022.42

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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.