Home / 29,867.28-41,192.98-20,915.16

Finding the Fourth Proportional to 29,867.28, 41,192.98 and 20,915.16

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Solution

The fourth proportional to 29,867.28, 41,192.98 and 20,915.16 is: 28,846.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,867.28 : 41,192.98 = 20,915.16 : x
  2. Step 2: Convert to fraction form
    29,867.28/41,192.98 = 20,915.16/x
  3. Step 3: Cross multiply
    29,867.28x = 41,192.98 × 20,915.16
  4. Step 4: Simplify right side
    29,867.28x = 861,557,767.58
  5. Step 5: Solve for x
    x = 861,557,767.58/29,867.28
  6. Step 6: Final answer
    x = 28,846.21

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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.