Home / 38,238.46-52,767.28-21,243.80

Finding the Fourth Proportional to 38,238.46, 52,767.28 and 21,243.80

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Solution

The fourth proportional to 38,238.46, 52,767.28 and 21,243.80 is: 29,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238.46 : 52,767.28 = 21,243.80 : x
  2. Step 2: Convert to fraction form
    38,238.46/52,767.28 = 21,243.80/x
  3. Step 3: Cross multiply
    38,238.46x = 52,767.28 × 21,243.80
  4. Step 4: Simplify right side
    38,238.46x = 1,120,977,542.86
  5. Step 5: Solve for x
    x = 1,120,977,542.86/38,238.46
  6. Step 6: Final answer
    x = 29,315.45

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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.