Home / 28,391.20-42,595.02-11,748.16

Finding the Fourth Proportional to 28,391.20, 42,595.02 and 11,748.16

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Solution

The fourth proportional to 28,391.20, 42,595.02 and 11,748.16 is: 17,625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,391.20 : 42,595.02 = 11,748.16 : x
  2. Step 2: Convert to fraction form
    28,391.20/42,595.02 = 11,748.16/x
  3. Step 3: Cross multiply
    28,391.20x = 42,595.02 × 11,748.16
  4. Step 4: Simplify right side
    28,391.20x = 500,413,110.16
  5. Step 5: Solve for x
    x = 500,413,110.16/28,391.20
  6. Step 6: Final answer
    x = 17,625.64

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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.