Home / 47,268.91-70,903.16-13,989.18

Finding the Fourth Proportional to 47,268.91, 70,903.16 and 13,989.18

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Solution

The fourth proportional to 47,268.91, 70,903.16 and 13,989.18 is: 20,983.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,268.91 : 70,903.16 = 13,989.18 : x
  2. Step 2: Convert to fraction form
    47,268.91/70,903.16 = 13,989.18/x
  3. Step 3: Cross multiply
    47,268.91x = 70,903.16 × 13,989.18
  4. Step 4: Simplify right side
    47,268.91x = 991,876,997.86
  5. Step 5: Solve for x
    x = 991,876,997.86/47,268.91
  6. Step 6: Final answer
    x = 20,983.71

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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.