Home / 21,253.35-29,328.87-11,693.19

Finding the Fourth Proportional to 21,253.35, 29,328.87 and 11,693.19

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Solution

The fourth proportional to 21,253.35, 29,328.87 and 11,693.19 is: 16,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.35 : 29,328.87 = 11,693.19 : x
  2. Step 2: Convert to fraction form
    21,253.35/29,328.87 = 11,693.19/x
  3. Step 3: Cross multiply
    21,253.35x = 29,328.87 × 11,693.19
  4. Step 4: Simplify right side
    21,253.35x = 342,948,049.40
  5. Step 5: Solve for x
    x = 342,948,049.40/21,253.35
  6. Step 6: Final answer
    x = 16,136.19

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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.