Home / 38,311.95-52,869.48-21,315.33

Finding the Fourth Proportional to 38,311.95, 52,869.48 and 21,315.33

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Solution

The fourth proportional to 38,311.95, 52,869.48 and 21,315.33 is: 29,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,311.95 : 52,869.48 = 21,315.33 : x
  2. Step 2: Convert to fraction form
    38,311.95/52,869.48 = 21,315.33/x
  3. Step 3: Cross multiply
    38,311.95x = 52,869.48 × 21,315.33
  4. Step 4: Simplify right side
    38,311.95x = 1,126,930,413.13
  5. Step 5: Solve for x
    x = 1,126,930,413.13/38,311.95
  6. Step 6: Final answer
    x = 29,414.59

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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.