Home / 21,248.29-29,321.39-12,295.16

Finding the Fourth Proportional to 21,248.29, 29,321.39 and 12,295.16

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Solution

The fourth proportional to 21,248.29, 29,321.39 and 12,295.16 is: 16,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.29 : 29,321.39 = 12,295.16 : x
  2. Step 2: Convert to fraction form
    21,248.29/29,321.39 = 12,295.16/x
  3. Step 3: Cross multiply
    21,248.29x = 29,321.39 × 12,295.16
  4. Step 4: Simplify right side
    21,248.29x = 360,511,181.47
  5. Step 5: Solve for x
    x = 360,511,181.47/21,248.29
  6. Step 6: Final answer
    x = 16,966.60

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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.