Home / 21,091.48-29,101.41-12,591.95

Finding the Fourth Proportional to 21,091.48, 29,101.41 and 12,591.95

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Solution

The fourth proportional to 21,091.48, 29,101.41 and 12,591.95 is: 17,374.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,091.48 : 29,101.41 = 12,591.95 : x
  2. Step 2: Convert to fraction form
    21,091.48/29,101.41 = 12,591.95/x
  3. Step 3: Cross multiply
    21,091.48x = 29,101.41 × 12,591.95
  4. Step 4: Simplify right side
    21,091.48x = 366,443,354.14
  5. Step 5: Solve for x
    x = 366,443,354.14/21,091.48
  6. Step 6: Final answer
    x = 17,374.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.