Home / 48,513.04-72,797.64-20,431.12

Finding the Fourth Proportional to 48,513.04, 72,797.64 and 20,431.12

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Solution

The fourth proportional to 48,513.04, 72,797.64 and 20,431.12 is: 30,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,513.04 : 72,797.64 = 20,431.12 : x
  2. Step 2: Convert to fraction form
    48,513.04/72,797.64 = 20,431.12/x
  3. Step 3: Cross multiply
    48,513.04x = 72,797.64 × 20,431.12
  4. Step 4: Simplify right side
    48,513.04x = 1,487,337,318.56
  5. Step 5: Solve for x
    x = 1,487,337,318.56/48,513.04
  6. Step 6: Final answer
    x = 30,658.51

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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.