Home / 21,517.02-29,693.30-12,085.38

Finding the Fourth Proportional to 21,517.02, 29,693.30 and 12,085.38

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Solution

The fourth proportional to 21,517.02, 29,693.30 and 12,085.38 is: 16,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,517.02 : 29,693.30 = 12,085.38 : x
  2. Step 2: Convert to fraction form
    21,517.02/29,693.30 = 12,085.38/x
  3. Step 3: Cross multiply
    21,517.02x = 29,693.30 × 12,085.38
  4. Step 4: Simplify right side
    21,517.02x = 358,854,813.95
  5. Step 5: Solve for x
    x = 358,854,813.95/21,517.02
  6. Step 6: Final answer
    x = 16,677.72

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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.