Home / 38,218.28-52,740.87-21,222.10

Finding the Fourth Proportional to 38,218.28, 52,740.87 and 21,222.10

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Solution

The fourth proportional to 38,218.28, 52,740.87 and 21,222.10 is: 29,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,218.28 : 52,740.87 = 21,222.10 : x
  2. Step 2: Convert to fraction form
    38,218.28/52,740.87 = 21,222.10/x
  3. Step 3: Cross multiply
    38,218.28x = 52,740.87 × 21,222.10
  4. Step 4: Simplify right side
    38,218.28x = 1,119,272,122.94
  5. Step 5: Solve for x
    x = 1,119,272,122.94/38,218.28
  6. Step 6: Final answer
    x = 29,286.30

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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.