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Finding the Fourth Proportional to 28,018.68, 42,033 and 9,299.84

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Solution

The fourth proportional to 28,018.68, 42,033 and 9,299.84 is: 13,951.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018.68 : 42,033 = 9,299.84 : x
  2. Step 2: Convert to fraction form
    28,018.68/42,033 = 9,299.84/x
  3. Step 3: Cross multiply
    28,018.68x = 42,033 × 9,299.84
  4. Step 4: Simplify right side
    28,018.68x = 390,900,174.72
  5. Step 5: Solve for x
    x = 390,900,174.72/28,018.68
  6. Step 6: Final answer
    x = 13,951.41

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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.