Home / 38,215.94-52,738.88-21,219.75

Finding the Fourth Proportional to 38,215.94, 52,738.88 and 21,219.75

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Solution

The fourth proportional to 38,215.94, 52,738.88 and 21,219.75 is: 29,283.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,215.94 : 52,738.88 = 21,219.75 : x
  2. Step 2: Convert to fraction form
    38,215.94/52,738.88 = 21,219.75/x
  3. Step 3: Cross multiply
    38,215.94x = 52,738.88 × 21,219.75
  4. Step 4: Simplify right side
    38,215.94x = 1,119,105,742.78
  5. Step 5: Solve for x
    x = 1,119,105,742.78/38,215.94
  6. Step 6: Final answer
    x = 29,283.75

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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.