Home / 31,447.98-47,150.37-11,715.84

Finding the Fourth Proportional to 31,447.98, 47,150.37 and 11,715.84

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Solution

The fourth proportional to 31,447.98, 47,150.37 and 11,715.84 is: 17,565.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,447.98 : 47,150.37 = 11,715.84 : x
  2. Step 2: Convert to fraction form
    31,447.98/47,150.37 = 11,715.84/x
  3. Step 3: Cross multiply
    31,447.98x = 47,150.37 × 11,715.84
  4. Step 4: Simplify right side
    31,447.98x = 552,406,190.86
  5. Step 5: Solve for x
    x = 552,406,190.86/31,447.98
  6. Step 6: Final answer
    x = 17,565.71

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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.