Home / 32,979.28-45,495.56-21,644.24

Finding the Fourth Proportional to 32,979.28, 45,495.56 and 21,644.24

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Solution

The fourth proportional to 32,979.28, 45,495.56 and 21,644.24 is: 29,858.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,979.28 : 45,495.56 = 21,644.24 : x
  2. Step 2: Convert to fraction form
    32,979.28/45,495.56 = 21,644.24/x
  3. Step 3: Cross multiply
    32,979.28x = 45,495.56 × 21,644.24
  4. Step 4: Simplify right side
    32,979.28x = 984,716,819.57
  5. Step 5: Solve for x
    x = 984,716,819.57/32,979.28
  6. Step 6: Final answer
    x = 29,858.65

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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.