Home / 38,239.99-57,237.16-20,426.11

Finding the Fourth Proportional to 38,239.99, 57,237.16 and 20,426.11

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Solution

The fourth proportional to 38,239.99, 57,237.16 and 20,426.11 is: 30,573.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,239.99 : 57,237.16 = 20,426.11 : x
  2. Step 2: Convert to fraction form
    38,239.99/57,237.16 = 20,426.11/x
  3. Step 3: Cross multiply
    38,239.99x = 57,237.16 × 20,426.11
  4. Step 4: Simplify right side
    38,239.99x = 1,169,132,625.43
  5. Step 5: Solve for x
    x = 1,169,132,625.43/38,239.99
  6. Step 6: Final answer
    x = 30,573.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.