Home / 39,247.08-54,160.70-21,342.08

Finding the Fourth Proportional to 39,247.08, 54,160.70 and 21,342.08

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Solution

The fourth proportional to 39,247.08, 54,160.70 and 21,342.08 is: 29,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,247.08 : 54,160.70 = 21,342.08 : x
  2. Step 2: Convert to fraction form
    39,247.08/54,160.70 = 21,342.08/x
  3. Step 3: Cross multiply
    39,247.08x = 54,160.70 × 21,342.08
  4. Step 4: Simplify right side
    39,247.08x = 1,155,901,992.26
  5. Step 5: Solve for x
    x = 1,155,901,992.26/39,247.08
  6. Step 6: Final answer
    x = 29,451.92

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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.