Home / 25,400.40-38,027.70-15,558.90

Finding the Fourth Proportional to 25,400.40, 38,027.70 and 15,558.90

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Solution

The fourth proportional to 25,400.40, 38,027.70 and 15,558.90 is: 23,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,400.40 : 38,027.70 = 15,558.90 : x
  2. Step 2: Convert to fraction form
    25,400.40/38,027.70 = 15,558.90/x
  3. Step 3: Cross multiply
    25,400.40x = 38,027.70 × 15,558.90
  4. Step 4: Simplify right side
    25,400.40x = 591,669,181.53
  5. Step 5: Solve for x
    x = 591,669,181.53/25,400.40
  6. Step 6: Final answer
    x = 23,293.70

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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.