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Finding the Fourth Proportional to 28,184.65, 42,277.65 and 9,465.29

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Solution

The fourth proportional to 28,184.65, 42,277.65 and 9,465.29 is: 14,198.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,184.65 : 42,277.65 = 9,465.29 : x
  2. Step 2: Convert to fraction form
    28,184.65/42,277.65 = 9,465.29/x
  3. Step 3: Cross multiply
    28,184.65x = 42,277.65 × 9,465.29
  4. Step 4: Simplify right side
    28,184.65x = 400,170,217.77
  5. Step 5: Solve for x
    x = 400,170,217.77/28,184.65
  6. Step 6: Final answer
    x = 14,198.16

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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.