Home / 38,195.47-52,709.84-21,428.47

Finding the Fourth Proportional to 38,195.47, 52,709.84 and 21,428.47

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Solution

The fourth proportional to 38,195.47, 52,709.84 and 21,428.47 is: 29,571.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,195.47 : 52,709.84 = 21,428.47 : x
  2. Step 2: Convert to fraction form
    38,195.47/52,709.84 = 21,428.47/x
  3. Step 3: Cross multiply
    38,195.47x = 52,709.84 × 21,428.47
  4. Step 4: Simplify right side
    38,195.47x = 1,129,491,225.14
  5. Step 5: Solve for x
    x = 1,129,491,225.14/38,195.47
  6. Step 6: Final answer
    x = 29,571.34

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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.