Home / 22,044.64-30,406.80-13,665.28

Finding the Fourth Proportional to 22,044.64, 30,406.80 and 13,665.28

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Solution

The fourth proportional to 22,044.64, 30,406.80 and 13,665.28 is: 18,848.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,044.64 : 30,406.80 = 13,665.28 : x
  2. Step 2: Convert to fraction form
    22,044.64/30,406.80 = 13,665.28/x
  3. Step 3: Cross multiply
    22,044.64x = 30,406.80 × 13,665.28
  4. Step 4: Simplify right side
    22,044.64x = 415,517,435.90
  5. Step 5: Solve for x
    x = 415,517,435.90/22,044.64
  6. Step 6: Final answer
    x = 18,848.91

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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.