Home / 29,302.98-40,438.09-15,874.28

Finding the Fourth Proportional to 29,302.98, 40,438.09 and 15,874.28

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Solution

The fourth proportional to 29,302.98, 40,438.09 and 15,874.28 is: 21,906.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,302.98 : 40,438.09 = 15,874.28 : x
  2. Step 2: Convert to fraction form
    29,302.98/40,438.09 = 15,874.28/x
  3. Step 3: Cross multiply
    29,302.98x = 40,438.09 × 15,874.28
  4. Step 4: Simplify right side
    29,302.98x = 641,925,422.54
  5. Step 5: Solve for x
    x = 641,925,422.54/29,302.98
  6. Step 6: Final answer
    x = 21,906.49

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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.