Home / 38,216.94-52,740.26-21,220.75

Finding the Fourth Proportional to 38,216.94, 52,740.26 and 21,220.75

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Solution

The fourth proportional to 38,216.94, 52,740.26 and 21,220.75 is: 29,285.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,216.94 : 52,740.26 = 21,220.75 : x
  2. Step 2: Convert to fraction form
    38,216.94/52,740.26 = 21,220.75/x
  3. Step 3: Cross multiply
    38,216.94x = 52,740.26 × 21,220.75
  4. Step 4: Simplify right side
    38,216.94x = 1,119,187,872.40
  5. Step 5: Solve for x
    x = 1,119,187,872.40/38,216.94
  6. Step 6: Final answer
    x = 29,285.13

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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.