Home / 28,260.03-42,381.90-11,393.04

Finding the Fourth Proportional to 28,260.03, 42,381.90 and 11,393.04

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Solution

The fourth proportional to 28,260.03, 42,381.90 and 11,393.04 is: 17,086.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,260.03 : 42,381.90 = 11,393.04 : x
  2. Step 2: Convert to fraction form
    28,260.03/42,381.90 = 11,393.04/x
  3. Step 3: Cross multiply
    28,260.03x = 42,381.90 × 11,393.04
  4. Step 4: Simplify right side
    28,260.03x = 482,858,681.98
  5. Step 5: Solve for x
    x = 482,858,681.98/28,260.03
  6. Step 6: Final answer
    x = 17,086.28

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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.