Home / 28,429.61-42,626.17-11,801.12

Finding the Fourth Proportional to 28,429.61, 42,626.17 and 11,801.12

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Solution

The fourth proportional to 28,429.61, 42,626.17 and 11,801.12 is: 17,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.61 : 42,626.17 = 11,801.12 : x
  2. Step 2: Convert to fraction form
    28,429.61/42,626.17 = 11,801.12/x
  3. Step 3: Cross multiply
    28,429.61x = 42,626.17 × 11,801.12
  4. Step 4: Simplify right side
    28,429.61x = 503,036,517.81
  5. Step 5: Solve for x
    x = 503,036,517.81/28,429.61
  6. Step 6: Final answer
    x = 17,694.11

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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.