Home / 39,898.32-55,060.07-21,994.02

Finding the Fourth Proportional to 39,898.32, 55,060.07 and 21,994.02

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Solution

The fourth proportional to 39,898.32, 55,060.07 and 21,994.02 is: 30,351.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,898.32 : 55,060.07 = 21,994.02 : x
  2. Step 2: Convert to fraction form
    39,898.32/55,060.07 = 21,994.02/x
  3. Step 3: Cross multiply
    39,898.32x = 55,060.07 × 21,994.02
  4. Step 4: Simplify right side
    39,898.32x = 1,210,992,170.81
  5. Step 5: Solve for x
    x = 1,210,992,170.81/39,898.32
  6. Step 6: Final answer
    x = 30,351.96

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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.