Home / 21,214.16-29,274.72-11,783.28

Finding the Fourth Proportional to 21,214.16, 29,274.72 and 11,783.28

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Solution

The fourth proportional to 21,214.16, 29,274.72 and 11,783.28 is: 16,260.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.16 : 29,274.72 = 11,783.28 : x
  2. Step 2: Convert to fraction form
    21,214.16/29,274.72 = 11,783.28/x
  3. Step 3: Cross multiply
    21,214.16x = 29,274.72 × 11,783.28
  4. Step 4: Simplify right side
    21,214.16x = 344,952,222.68
  5. Step 5: Solve for x
    x = 344,952,222.68/21,214.16
  6. Step 6: Final answer
    x = 16,260.47

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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.