Home / 38,631.25-53,311.94-21,864.25

Finding the Fourth Proportional to 38,631.25, 53,311.94 and 21,864.25

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Solution

The fourth proportional to 38,631.25, 53,311.94 and 21,864.25 is: 30,173.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.25 : 53,311.94 = 21,864.25 : x
  2. Step 2: Convert to fraction form
    38,631.25/53,311.94 = 21,864.25/x
  3. Step 3: Cross multiply
    38,631.25x = 53,311.94 × 21,864.25
  4. Step 4: Simplify right side
    38,631.25x = 1,165,625,584.15
  5. Step 5: Solve for x
    x = 1,165,625,584.15/38,631.25
  6. Step 6: Final answer
    x = 30,173.13

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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.