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Finding the Fourth Proportional to 29,651.28, 40,929.18 and 18,329.46

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Solution

The fourth proportional to 29,651.28, 40,929.18 and 18,329.46 is: 25,301.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,651.28 : 40,929.18 = 18,329.46 : x
  2. Step 2: Convert to fraction form
    29,651.28/40,929.18 = 18,329.46/x
  3. Step 3: Cross multiply
    29,651.28x = 40,929.18 × 18,329.46
  4. Step 4: Simplify right side
    29,651.28x = 750,209,767.64
  5. Step 5: Solve for x
    x = 750,209,767.64/29,651.28
  6. Step 6: Final answer
    x = 25,301.09

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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.