Home / 38,409.12-53,002.83-21,415.23

Finding the Fourth Proportional to 38,409.12, 53,002.83 and 21,415.23

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Solution

The fourth proportional to 38,409.12, 53,002.83 and 21,415.23 is: 29,552.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,409.12 : 53,002.83 = 21,415.23 : x
  2. Step 2: Convert to fraction form
    38,409.12/53,002.83 = 21,415.23/x
  3. Step 3: Cross multiply
    38,409.12x = 53,002.83 × 21,415.23
  4. Step 4: Simplify right side
    38,409.12x = 1,135,067,795.10
  5. Step 5: Solve for x
    x = 1,135,067,795.10/38,409.12
  6. Step 6: Final answer
    x = 29,552.04

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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.