Home / 25,990.32-38,989.56-11,203.40

Finding the Fourth Proportional to 25,990.32, 38,989.56 and 11,203.40

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Solution

The fourth proportional to 25,990.32, 38,989.56 and 11,203.40 is: 16,806.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,990.32 : 38,989.56 = 11,203.40 : x
  2. Step 2: Convert to fraction form
    25,990.32/38,989.56 = 11,203.40/x
  3. Step 3: Cross multiply
    25,990.32x = 38,989.56 × 11,203.40
  4. Step 4: Simplify right side
    25,990.32x = 436,815,636.50
  5. Step 5: Solve for x
    x = 436,815,636.50/25,990.32
  6. Step 6: Final answer
    x = 16,806.86

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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.