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Finding the Fourth Proportional to 18,281.84, 27,422.67 and 4,430.84

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Solution

The fourth proportional to 18,281.84, 27,422.67 and 4,430.84 is: 6,646.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.84 : 27,422.67 = 4,430.84 : x
  2. Step 2: Convert to fraction form
    18,281.84/27,422.67 = 4,430.84/x
  3. Step 3: Cross multiply
    18,281.84x = 27,422.67 × 4,430.84
  4. Step 4: Simplify right side
    18,281.84x = 121,505,463.14
  5. Step 5: Solve for x
    x = 121,505,463.14/18,281.84
  6. Step 6: Final answer
    x = 6,646.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.