Home / 29,189.78-40,279.61-16,442.41

Finding the Fourth Proportional to 29,189.78, 40,279.61 and 16,442.41

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Solution

The fourth proportional to 29,189.78, 40,279.61 and 16,442.41 is: 22,689.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,189.78 : 40,279.61 = 16,442.41 : x
  2. Step 2: Convert to fraction form
    29,189.78/40,279.61 = 16,442.41/x
  3. Step 3: Cross multiply
    29,189.78x = 40,279.61 × 16,442.41
  4. Step 4: Simplify right side
    29,189.78x = 662,293,660.86
  5. Step 5: Solve for x
    x = 662,293,660.86/29,189.78
  6. Step 6: Final answer
    x = 22,689.23

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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.