Home / 28,135.80-38,799.54-18,062.68

Finding the Fourth Proportional to 28,135.80, 38,799.54 and 18,062.68

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Solution

The fourth proportional to 28,135.80, 38,799.54 and 18,062.68 is: 24,908.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.80 : 38,799.54 = 18,062.68 : x
  2. Step 2: Convert to fraction form
    28,135.80/38,799.54 = 18,062.68/x
  3. Step 3: Cross multiply
    28,135.80x = 38,799.54 × 18,062.68
  4. Step 4: Simplify right side
    28,135.80x = 700,823,675.17
  5. Step 5: Solve for x
    x = 700,823,675.17/28,135.80
  6. Step 6: Final answer
    x = 24,908.61

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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.