Home / 25,090.81-34,625.68-13,761.39

Finding the Fourth Proportional to 25,090.81, 34,625.68 and 13,761.39

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Solution

The fourth proportional to 25,090.81, 34,625.68 and 13,761.39 is: 18,990.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,090.81 : 34,625.68 = 13,761.39 : x
  2. Step 2: Convert to fraction form
    25,090.81/34,625.68 = 13,761.39/x
  3. Step 3: Cross multiply
    25,090.81x = 34,625.68 × 13,761.39
  4. Step 4: Simplify right side
    25,090.81x = 476,497,581.94
  5. Step 5: Solve for x
    x = 476,497,581.94/25,090.81
  6. Step 6: Final answer
    x = 18,990.92

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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.