Home / 25,740.60-38,610.90-9,119.40

Finding the Fourth Proportional to 25,740.60, 38,610.90 and 9,119.40

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Solution

The fourth proportional to 25,740.60, 38,610.90 and 9,119.40 is: 13,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,740.60 : 38,610.90 = 9,119.40 : x
  2. Step 2: Convert to fraction form
    25,740.60/38,610.90 = 9,119.40/x
  3. Step 3: Cross multiply
    25,740.60x = 38,610.90 × 9,119.40
  4. Step 4: Simplify right side
    25,740.60x = 352,108,241.46
  5. Step 5: Solve for x
    x = 352,108,241.46/25,740.60
  6. Step 6: Final answer
    x = 13,679.10

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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.