Home / 37,698.22-52,019.64-21,787.78

Finding the Fourth Proportional to 37,698.22, 52,019.64 and 21,787.78

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Solution

The fourth proportional to 37,698.22, 52,019.64 and 21,787.78 is: 30,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,698.22 : 52,019.64 = 21,787.78 : x
  2. Step 2: Convert to fraction form
    37,698.22/52,019.64 = 21,787.78/x
  3. Step 3: Cross multiply
    37,698.22x = 52,019.64 × 21,787.78
  4. Step 4: Simplify right side
    37,698.22x = 1,133,392,472.00
  5. Step 5: Solve for x
    x = 1,133,392,472.00/37,698.22
  6. Step 6: Final answer
    x = 30,064.88

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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.