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Finding the Fourth Proportional to 19,244.10, 28,866.15 and 18,515.10

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Solution

The fourth proportional to 19,244.10, 28,866.15 and 18,515.10 is: 27,772.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,244.10 : 28,866.15 = 18,515.10 : x
  2. Step 2: Convert to fraction form
    19,244.10/28,866.15 = 18,515.10/x
  3. Step 3: Cross multiply
    19,244.10x = 28,866.15 × 18,515.10
  4. Step 4: Simplify right side
    19,244.10x = 534,459,653.87
  5. Step 5: Solve for x
    x = 534,459,653.87/19,244.10
  6. Step 6: Final answer
    x = 27,772.65

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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.