Home / 48,258.32-72,329.16-20,498

Finding the Fourth Proportional to 48,258.32, 72,329.16 and 20,498

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Solution

The fourth proportional to 48,258.32, 72,329.16 and 20,498 is: 30,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,258.32 : 72,329.16 = 20,498 : x
  2. Step 2: Convert to fraction form
    48,258.32/72,329.16 = 20,498/x
  3. Step 3: Cross multiply
    48,258.32x = 72,329.16 × 20,498
  4. Step 4: Simplify right side
    48,258.32x = 1,482,603,121.68
  5. Step 5: Solve for x
    x = 1,482,603,121.68/48,258.32
  6. Step 6: Final answer
    x = 30,722.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.