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Finding the Fourth Proportional to 22,774.40, 34,129.60 and 18,102.40

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Solution

The fourth proportional to 22,774.40, 34,129.60 and 18,102.40 is: 27,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,774.40 : 34,129.60 = 18,102.40 : x
  2. Step 2: Convert to fraction form
    22,774.40/34,129.60 = 18,102.40/x
  3. Step 3: Cross multiply
    22,774.40x = 34,129.60 × 18,102.40
  4. Step 4: Simplify right side
    22,774.40x = 617,827,671.04
  5. Step 5: Solve for x
    x = 617,827,671.04/22,774.40
  6. Step 6: Final answer
    x = 27,128.16

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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.