Home / 48,217.21-72,337.36-20,121.63

Finding the Fourth Proportional to 48,217.21, 72,337.36 and 20,121.63

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Solution

The fourth proportional to 48,217.21, 72,337.36 and 20,121.63 is: 30,187.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,217.21 : 72,337.36 = 20,121.63 : x
  2. Step 2: Convert to fraction form
    48,217.21/72,337.36 = 20,121.63/x
  3. Step 3: Cross multiply
    48,217.21x = 72,337.36 × 20,121.63
  4. Step 4: Simplify right side
    48,217.21x = 1,455,545,593.10
  5. Step 5: Solve for x
    x = 1,455,545,593.10/48,217.21
  6. Step 6: Final answer
    x = 30,187.27

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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.