Home / 39,898.28-55,060.01-21,993.93

Finding the Fourth Proportional to 39,898.28, 55,060.01 and 21,993.93

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Solution

The fourth proportional to 39,898.28, 55,060.01 and 21,993.93 is: 30,351.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,898.28 : 55,060.01 = 21,993.93 : x
  2. Step 2: Convert to fraction form
    39,898.28/55,060.01 = 21,993.93/x
  3. Step 3: Cross multiply
    39,898.28x = 55,060.01 × 21,993.93
  4. Step 4: Simplify right side
    39,898.28x = 1,210,985,895.77
  5. Step 5: Solve for x
    x = 1,210,985,895.77/39,898.28
  6. Step 6: Final answer
    x = 30,351.83

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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.