Home / 29,179.32-40,211.28-21,208.92

Finding the Fourth Proportional to 29,179.32, 40,211.28 and 21,208.92

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Solution

The fourth proportional to 29,179.32, 40,211.28 and 21,208.92 is: 29,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,179.32 : 40,211.28 = 21,208.92 : x
  2. Step 2: Convert to fraction form
    29,179.32/40,211.28 = 21,208.92/x
  3. Step 3: Cross multiply
    29,179.32x = 40,211.28 × 21,208.92
  4. Step 4: Simplify right side
    29,179.32x = 852,837,820.62
  5. Step 5: Solve for x
    x = 852,837,820.62/29,179.32
  6. Step 6: Final answer
    x = 29,227.47

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Double scale
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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.