Home / 38,405.24-52,998.70-21,638.52

Finding the Fourth Proportional to 38,405.24, 52,998.70 and 21,638.52

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Solution

The fourth proportional to 38,405.24, 52,998.70 and 21,638.52 is: 29,860.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,405.24 : 52,998.70 = 21,638.52 : x
  2. Step 2: Convert to fraction form
    38,405.24/52,998.70 = 21,638.52/x
  3. Step 3: Cross multiply
    38,405.24x = 52,998.70 × 21,638.52
  4. Step 4: Simplify right side
    38,405.24x = 1,146,813,429.92
  5. Step 5: Solve for x
    x = 1,146,813,429.92/38,405.24
  6. Step 6: Final answer
    x = 29,860.86

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1.5x scale

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.