Home / 25,705.20-38,572.20-10,911.60

Finding the Fourth Proportional to 25,705.20, 38,572.20 and 10,911.60

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Solution

The fourth proportional to 25,705.20, 38,572.20 and 10,911.60 is: 16,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,705.20 : 38,572.20 = 10,911.60 : x
  2. Step 2: Convert to fraction form
    25,705.20/38,572.20 = 10,911.60/x
  3. Step 3: Cross multiply
    25,705.20x = 38,572.20 × 10,911.60
  4. Step 4: Simplify right side
    25,705.20x = 420,884,417.52
  5. Step 5: Solve for x
    x = 420,884,417.52/25,705.20
  6. Step 6: Final answer
    x = 16,373.51

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