Home / 21,255.92-29,332.38-11,824.28

Finding the Fourth Proportional to 21,255.92, 29,332.38 and 11,824.28

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Solution

The fourth proportional to 21,255.92, 29,332.38 and 11,824.28 is: 16,317.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,255.92 : 29,332.38 = 11,824.28 : x
  2. Step 2: Convert to fraction form
    21,255.92/29,332.38 = 11,824.28/x
  3. Step 3: Cross multiply
    21,255.92x = 29,332.38 × 11,824.28
  4. Step 4: Simplify right side
    21,255.92x = 346,834,274.19
  5. Step 5: Solve for x
    x = 346,834,274.19/21,255.92
  6. Step 6: Final answer
    x = 16,317.07

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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.