Home / 25,489.69-38,241.43-18,140.80

Finding the Fourth Proportional to 25,489.69, 38,241.43 and 18,140.80

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Solution

The fourth proportional to 25,489.69, 38,241.43 and 18,140.80 is: 27,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,489.69 : 38,241.43 = 18,140.80 : x
  2. Step 2: Convert to fraction form
    25,489.69/38,241.43 = 18,140.80/x
  3. Step 3: Cross multiply
    25,489.69x = 38,241.43 × 18,140.80
  4. Step 4: Simplify right side
    25,489.69x = 693,730,133.34
  5. Step 5: Solve for x
    x = 693,730,133.34/25,489.69
  6. Step 6: Final answer
    x = 27,216.11

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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.