Home / 21,314.25-31,982.90-10,370.25

Finding the Fourth Proportional to 21,314.25, 31,982.90 and 10,370.25

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Solution

The fourth proportional to 21,314.25, 31,982.90 and 10,370.25 is: 15,560.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.25 : 31,982.90 = 10,370.25 : x
  2. Step 2: Convert to fraction form
    21,314.25/31,982.90 = 10,370.25/x
  3. Step 3: Cross multiply
    21,314.25x = 31,982.90 × 10,370.25
  4. Step 4: Simplify right side
    21,314.25x = 331,670,616.87
  5. Step 5: Solve for x
    x = 331,670,616.87/21,314.25
  6. Step 6: Final answer
    x = 15,560.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.