Home / 39,314.64-54,255.08-21,409.65

Finding the Fourth Proportional to 39,314.64, 54,255.08 and 21,409.65

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Solution

The fourth proportional to 39,314.64, 54,255.08 and 21,409.65 is: 29,545.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,314.64 : 54,255.08 = 21,409.65 : x
  2. Step 2: Convert to fraction form
    39,314.64/54,255.08 = 21,409.65/x
  3. Step 3: Cross multiply
    39,314.64x = 54,255.08 × 21,409.65
  4. Step 4: Simplify right side
    39,314.64x = 1,161,582,166.47
  5. Step 5: Solve for x
    x = 1,161,582,166.47/39,314.64
  6. Step 6: Final answer
    x = 29,545.79

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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.