Home / 25,453.97-35,117.40-15,890.23

Finding the Fourth Proportional to 25,453.97, 35,117.40 and 15,890.23

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Solution

The fourth proportional to 25,453.97, 35,117.40 and 15,890.23 is: 21,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,453.97 : 35,117.40 = 15,890.23 : x
  2. Step 2: Convert to fraction form
    25,453.97/35,117.40 = 15,890.23/x
  3. Step 3: Cross multiply
    25,453.97x = 35,117.40 × 15,890.23
  4. Step 4: Simplify right side
    25,453.97x = 558,023,563.00
  5. Step 5: Solve for x
    x = 558,023,563.00/25,453.97
  6. Step 6: Final answer
    x = 21,922.85

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Half scale
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Double scale
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Similar ratio
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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.