Home / 21,164.91-29,208.49-11,733.47

Finding the Fourth Proportional to 21,164.91, 29,208.49 and 11,733.47

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Solution

The fourth proportional to 21,164.91, 29,208.49 and 11,733.47 is: 16,192.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.91 : 29,208.49 = 11,733.47 : x
  2. Step 2: Convert to fraction form
    21,164.91/29,208.49 = 11,733.47/x
  3. Step 3: Cross multiply
    21,164.91x = 29,208.49 × 11,733.47
  4. Step 4: Simplify right side
    21,164.91x = 342,716,875.32
  5. Step 5: Solve for x
    x = 342,716,875.32/21,164.91
  6. Step 6: Final answer
    x = 16,192.70

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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.