Home / 38,400.10-52,993.78-21,404.34

Finding the Fourth Proportional to 38,400.10, 52,993.78 and 21,404.34

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Solution

The fourth proportional to 38,400.10, 52,993.78 and 21,404.34 is: 29,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,400.10 : 52,993.78 = 21,404.34 : x
  2. Step 2: Convert to fraction form
    38,400.10/52,993.78 = 21,404.34/x
  3. Step 3: Cross multiply
    38,400.10x = 52,993.78 × 21,404.34
  4. Step 4: Simplify right side
    38,400.10x = 1,134,296,885.01
  5. Step 5: Solve for x
    x = 1,134,296,885.01/38,400.10
  6. Step 6: Final answer
    x = 29,538.90

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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.