Home / 18,430.79-25,433.60-10,881.59

Finding the Fourth Proportional to 18,430.79, 25,433.60 and 10,881.59

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Solution

The fourth proportional to 18,430.79, 25,433.60 and 10,881.59 is: 15,016.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.79 : 25,433.60 = 10,881.59 : x
  2. Step 2: Convert to fraction form
    18,430.79/25,433.60 = 10,881.59/x
  3. Step 3: Cross multiply
    18,430.79x = 25,433.60 × 10,881.59
  4. Step 4: Simplify right side
    18,430.79x = 276,757,825.85
  5. Step 5: Solve for x
    x = 276,757,825.85/18,430.79
  6. Step 6: Final answer
    x = 15,016.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.