Home / 18,105.89-24,985.68-10,039.57

Finding the Fourth Proportional to 18,105.89, 24,985.68 and 10,039.57

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Solution

The fourth proportional to 18,105.89, 24,985.68 and 10,039.57 is: 13,854.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.89 : 24,985.68 = 10,039.57 : x
  2. Step 2: Convert to fraction form
    18,105.89/24,985.68 = 10,039.57/x
  3. Step 3: Cross multiply
    18,105.89x = 24,985.68 × 10,039.57
  4. Step 4: Simplify right side
    18,105.89x = 250,845,573.04
  5. Step 5: Solve for x
    x = 250,845,573.04/18,105.89
  6. Step 6: Final answer
    x = 13,854.36

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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.