Home / 29,112.32-40,172.48-16,189.12

Finding the Fourth Proportional to 29,112.32, 40,172.48 and 16,189.12

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Solution

The fourth proportional to 29,112.32, 40,172.48 and 16,189.12 is: 22,339.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,112.32 : 40,172.48 = 16,189.12 : x
  2. Step 2: Convert to fraction form
    29,112.32/40,172.48 = 16,189.12/x
  3. Step 3: Cross multiply
    29,112.32x = 40,172.48 × 16,189.12
  4. Step 4: Simplify right side
    29,112.32x = 650,357,099.42
  5. Step 5: Solve for x
    x = 650,357,099.42/29,112.32
  6. Step 6: Final answer
    x = 22,339.58

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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.