Home / 28,163.40-42,244.98-11,531.16

Finding the Fourth Proportional to 28,163.40, 42,244.98 and 11,531.16

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Solution

The fourth proportional to 28,163.40, 42,244.98 and 11,531.16 is: 17,296.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163.40 : 42,244.98 = 11,531.16 : x
  2. Step 2: Convert to fraction form
    28,163.40/42,244.98 = 11,531.16/x
  3. Step 3: Cross multiply
    28,163.40x = 42,244.98 × 11,531.16
  4. Step 4: Simplify right side
    28,163.40x = 487,133,623.58
  5. Step 5: Solve for x
    x = 487,133,623.58/28,163.40
  6. Step 6: Final answer
    x = 17,296.69

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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.