Home / 21,599.18-29,796.68-12,641.13

Finding the Fourth Proportional to 21,599.18, 29,796.68 and 12,641.13

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Solution

The fourth proportional to 21,599.18, 29,796.68 and 12,641.13 is: 17,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,599.18 : 29,796.68 = 12,641.13 : x
  2. Step 2: Convert to fraction form
    21,599.18/29,796.68 = 12,641.13/x
  3. Step 3: Cross multiply
    21,599.18x = 29,796.68 × 12,641.13
  4. Step 4: Simplify right side
    21,599.18x = 376,663,642.24
  5. Step 5: Solve for x
    x = 376,663,642.24/21,599.18
  6. Step 6: Final answer
    x = 17,438.80

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1.5x scale

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.