Home / 28,084.12-42,089.82-11,424.76

Finding the Fourth Proportional to 28,084.12, 42,089.82 and 11,424.76

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Solution

The fourth proportional to 28,084.12, 42,089.82 and 11,424.76 is: 17,122.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.12 : 42,089.82 = 11,424.76 : x
  2. Step 2: Convert to fraction form
    28,084.12/42,089.82 = 11,424.76/x
  3. Step 3: Cross multiply
    28,084.12x = 42,089.82 × 11,424.76
  4. Step 4: Simplify right side
    28,084.12x = 480,866,091.94
  5. Step 5: Solve for x
    x = 480,866,091.94/28,084.12
  6. Step 6: Final answer
    x = 17,122.35

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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.