Home / 28,264.48-42,382.50-11,619.88

Finding the Fourth Proportional to 28,264.48, 42,382.50 and 11,619.88

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Solution

The fourth proportional to 28,264.48, 42,382.50 and 11,619.88 is: 17,423.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.48 : 42,382.50 = 11,619.88 : x
  2. Step 2: Convert to fraction form
    28,264.48/42,382.50 = 11,619.88/x
  3. Step 3: Cross multiply
    28,264.48x = 42,382.50 × 11,619.88
  4. Step 4: Simplify right side
    28,264.48x = 492,479,564.10
  5. Step 5: Solve for x
    x = 492,479,564.10/28,264.48
  6. Step 6: Final answer
    x = 17,423.97

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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.