Home / 21,155.86-29,194.91-11,596.28

Finding the Fourth Proportional to 21,155.86, 29,194.91 and 11,596.28

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Solution

The fourth proportional to 21,155.86, 29,194.91 and 11,596.28 is: 16,002.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155.86 : 29,194.91 = 11,596.28 : x
  2. Step 2: Convert to fraction form
    21,155.86/29,194.91 = 11,596.28/x
  3. Step 3: Cross multiply
    21,155.86x = 29,194.91 × 11,596.28
  4. Step 4: Simplify right side
    21,155.86x = 338,552,457.04
  5. Step 5: Solve for x
    x = 338,552,457.04/21,155.86
  6. Step 6: Final answer
    x = 16,002.77

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Double scale
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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.