Home / 35,293.52-48,703.56-21,138.80

Finding the Fourth Proportional to 35,293.52, 48,703.56 and 21,138.80

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Solution

The fourth proportional to 35,293.52, 48,703.56 and 21,138.80 is: 29,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,293.52 : 48,703.56 = 21,138.80 : x
  2. Step 2: Convert to fraction form
    35,293.52/48,703.56 = 21,138.80/x
  3. Step 3: Cross multiply
    35,293.52x = 48,703.56 × 21,138.80
  4. Step 4: Simplify right side
    35,293.52x = 1,029,534,814.13
  5. Step 5: Solve for x
    x = 1,029,534,814.13/35,293.52
  6. Step 6: Final answer
    x = 29,170.65

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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.