Home / 48,217.77-72,338.21-20,122.20

Finding the Fourth Proportional to 48,217.77, 72,338.21 and 20,122.20

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Solution

The fourth proportional to 48,217.77, 72,338.21 and 20,122.20 is: 30,188.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,217.77 : 72,338.21 = 20,122.20 : x
  2. Step 2: Convert to fraction form
    48,217.77/72,338.21 = 20,122.20/x
  3. Step 3: Cross multiply
    48,217.77x = 72,338.21 × 20,122.20
  4. Step 4: Simplify right side
    48,217.77x = 1,455,603,929.26
  5. Step 5: Solve for x
    x = 1,455,603,929.26/48,217.77
  6. Step 6: Final answer
    x = 30,188.12

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1.5x scale

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.