Home / 25,905.60-38,839.20-11,102.40

Finding the Fourth Proportional to 25,905.60, 38,839.20 and 11,102.40

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Solution

The fourth proportional to 25,905.60, 38,839.20 and 11,102.40 is: 16,645.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905.60 : 38,839.20 = 11,102.40 : x
  2. Step 2: Convert to fraction form
    25,905.60/38,839.20 = 11,102.40/x
  3. Step 3: Cross multiply
    25,905.60x = 38,839.20 × 11,102.40
  4. Step 4: Simplify right side
    25,905.60x = 431,208,334.08
  5. Step 5: Solve for x
    x = 431,208,334.08/25,905.60
  6. Step 6: Final answer
    x = 16,645.37

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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.