Home / 25,921.60-38,882.40-7,201.60

Finding the Fourth Proportional to 25,921.60, 38,882.40 and 7,201.60

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Solution

The fourth proportional to 25,921.60, 38,882.40 and 7,201.60 is: 10,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,921.60 : 38,882.40 = 7,201.60 : x
  2. Step 2: Convert to fraction form
    25,921.60/38,882.40 = 7,201.60/x
  3. Step 3: Cross multiply
    25,921.60x = 38,882.40 × 7,201.60
  4. Step 4: Simplify right side
    25,921.60x = 280,015,491.84
  5. Step 5: Solve for x
    x = 280,015,491.84/25,921.60
  6. Step 6: Final answer
    x = 10,802.40

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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.