Home / 19,949.64-27,520.38-15,225.72

Finding the Fourth Proportional to 19,949.64, 27,520.38 and 15,225.72

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Solution

The fourth proportional to 19,949.64, 27,520.38 and 15,225.72 is: 21,003.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,949.64 : 27,520.38 = 15,225.72 : x
  2. Step 2: Convert to fraction form
    19,949.64/27,520.38 = 15,225.72/x
  3. Step 3: Cross multiply
    19,949.64x = 27,520.38 × 15,225.72
  4. Step 4: Simplify right side
    19,949.64x = 419,017,600.17
  5. Step 5: Solve for x
    x = 419,017,600.17/19,949.64
  6. Step 6: Final answer
    x = 21,003.77

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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.