Home / 21,081.61-29,092.65-11,650.18

Finding the Fourth Proportional to 21,081.61, 29,092.65 and 11,650.18

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Solution

The fourth proportional to 21,081.61, 29,092.65 and 11,650.18 is: 16,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.61 : 29,092.65 = 11,650.18 : x
  2. Step 2: Convert to fraction form
    21,081.61/29,092.65 = 11,650.18/x
  3. Step 3: Cross multiply
    21,081.61x = 29,092.65 × 11,650.18
  4. Step 4: Simplify right side
    21,081.61x = 338,934,463.71
  5. Step 5: Solve for x
    x = 338,934,463.71/21,081.61
  6. Step 6: Final answer
    x = 16,077.26

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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.