Home / 28,197.88-42,294.40-11,553.16

Finding the Fourth Proportional to 28,197.88, 42,294.40 and 11,553.16

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Solution

The fourth proportional to 28,197.88, 42,294.40 and 11,553.16 is: 17,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.88 : 42,294.40 = 11,553.16 : x
  2. Step 2: Convert to fraction form
    28,197.88/42,294.40 = 11,553.16/x
  3. Step 3: Cross multiply
    28,197.88x = 42,294.40 × 11,553.16
  4. Step 4: Simplify right side
    28,197.88x = 488,633,970.30
  5. Step 5: Solve for x
    x = 488,633,970.30/28,197.88
  6. Step 6: Final answer
    x = 17,328.75

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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.