Home / 29,005.32-40,040.82-21,838.08

Finding the Fourth Proportional to 29,005.32, 40,040.82 and 21,838.08

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Solution

The fourth proportional to 29,005.32, 40,040.82 and 21,838.08 is: 30,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,005.32 : 40,040.82 = 21,838.08 : x
  2. Step 2: Convert to fraction form
    29,005.32/40,040.82 = 21,838.08/x
  3. Step 3: Cross multiply
    29,005.32x = 40,040.82 × 21,838.08
  4. Step 4: Simplify right side
    29,005.32x = 874,414,630.43
  5. Step 5: Solve for x
    x = 874,414,630.43/29,005.32
  6. Step 6: Final answer
    x = 30,146.70

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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.