Home / 39,595.20-54,641.44-21,689.81

Finding the Fourth Proportional to 39,595.20, 54,641.44 and 21,689.81

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Solution

The fourth proportional to 39,595.20, 54,641.44 and 21,689.81 is: 29,931.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,595.20 : 54,641.44 = 21,689.81 : x
  2. Step 2: Convert to fraction form
    39,595.20/54,641.44 = 21,689.81/x
  3. Step 3: Cross multiply
    39,595.20x = 54,641.44 × 21,689.81
  4. Step 4: Simplify right side
    39,595.20x = 1,185,162,288.53
  5. Step 5: Solve for x
    x = 1,185,162,288.53/39,595.20
  6. Step 6: Final answer
    x = 29,931.97

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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.