Home / 28,279.76-39,019.88-17,101.52

Finding the Fourth Proportional to 28,279.76, 39,019.88 and 17,101.52

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Solution

The fourth proportional to 28,279.76, 39,019.88 and 17,101.52 is: 23,596.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.76 : 39,019.88 = 17,101.52 : x
  2. Step 2: Convert to fraction form
    28,279.76/39,019.88 = 17,101.52/x
  3. Step 3: Cross multiply
    28,279.76x = 39,019.88 × 17,101.52
  4. Step 4: Simplify right side
    28,279.76x = 667,299,258.22
  5. Step 5: Solve for x
    x = 667,299,258.22/28,279.76
  6. Step 6: Final answer
    x = 23,596.36

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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.