Home / 38,716.12-53,432.28-21,724.95

Finding the Fourth Proportional to 38,716.12, 53,432.28 and 21,724.95

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Solution

The fourth proportional to 38,716.12, 53,432.28 and 21,724.95 is: 29,982.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,716.12 : 53,432.28 = 21,724.95 : x
  2. Step 2: Convert to fraction form
    38,716.12/53,432.28 = 21,724.95/x
  3. Step 3: Cross multiply
    38,716.12x = 53,432.28 × 21,724.95
  4. Step 4: Simplify right side
    38,716.12x = 1,160,813,611.39
  5. Step 5: Solve for x
    x = 1,160,813,611.39/38,716.12
  6. Step 6: Final answer
    x = 29,982.69

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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.