Home / 18,403.31-25,396.61-10,019.81

Finding the Fourth Proportional to 18,403.31, 25,396.61 and 10,019.81

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Solution

The fourth proportional to 18,403.31, 25,396.61 and 10,019.81 is: 13,827.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.31 : 25,396.61 = 10,019.81 : x
  2. Step 2: Convert to fraction form
    18,403.31/25,396.61 = 10,019.81/x
  3. Step 3: Cross multiply
    18,403.31x = 25,396.61 × 10,019.81
  4. Step 4: Simplify right side
    18,403.31x = 254,469,220.24
  5. Step 5: Solve for x
    x = 254,469,220.24/18,403.31
  6. Step 6: Final answer
    x = 13,827.36

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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.