Home / 25,989.60-38,986.56-10,398.72

Finding the Fourth Proportional to 25,989.60, 38,986.56 and 10,398.72

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Solution

The fourth proportional to 25,989.60, 38,986.56 and 10,398.72 is: 15,598.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,989.60 : 38,986.56 = 10,398.72 : x
  2. Step 2: Convert to fraction form
    25,989.60/38,986.56 = 10,398.72/x
  3. Step 3: Cross multiply
    25,989.60x = 38,986.56 × 10,398.72
  4. Step 4: Simplify right side
    25,989.60x = 405,410,321.20
  5. Step 5: Solve for x
    x = 405,410,321.20/25,989.60
  6. Step 6: Final answer
    x = 15,598.94

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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.