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Finding the Fourth Proportional to 18,285.69, 27,428.54 and 4,434.69

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Solution

The fourth proportional to 18,285.69, 27,428.54 and 4,434.69 is: 6,652.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.69 : 27,428.54 = 4,434.69 : x
  2. Step 2: Convert to fraction form
    18,285.69/27,428.54 = 4,434.69/x
  3. Step 3: Cross multiply
    18,285.69x = 27,428.54 × 4,434.69
  4. Step 4: Simplify right side
    18,285.69x = 121,637,072.05
  5. Step 5: Solve for x
    x = 121,637,072.05/18,285.69
  6. Step 6: Final answer
    x = 6,652.04

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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.