Home / 39,718.29-54,811.03-21,568.86

Finding the Fourth Proportional to 39,718.29, 54,811.03 and 21,568.86

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Solution

The fourth proportional to 39,718.29, 54,811.03 and 21,568.86 is: 29,764.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,718.29 : 54,811.03 = 21,568.86 : x
  2. Step 2: Convert to fraction form
    39,718.29/54,811.03 = 21,568.86/x
  3. Step 3: Cross multiply
    39,718.29x = 54,811.03 × 21,568.86
  4. Step 4: Simplify right side
    39,718.29x = 1,182,211,111.84
  5. Step 5: Solve for x
    x = 1,182,211,111.84/39,718.29
  6. Step 6: Final answer
    x = 29,764.91

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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.