Home / 28,332.82-39,100.35-15,758.38

Finding the Fourth Proportional to 28,332.82, 39,100.35 and 15,758.38

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Solution

The fourth proportional to 28,332.82, 39,100.35 and 15,758.38 is: 21,747.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,332.82 : 39,100.35 = 15,758.38 : x
  2. Step 2: Convert to fraction form
    28,332.82/39,100.35 = 15,758.38/x
  3. Step 3: Cross multiply
    28,332.82x = 39,100.35 × 15,758.38
  4. Step 4: Simplify right side
    28,332.82x = 616,158,173.43
  5. Step 5: Solve for x
    x = 616,158,173.43/28,332.82
  6. Step 6: Final answer
    x = 21,747.15

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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.