Home / 31,715.52-47,595.12-10,939

Finding the Fourth Proportional to 31,715.52, 47,595.12 and 10,939

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Solution

The fourth proportional to 31,715.52, 47,595.12 and 10,939 is: 16,416.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,715.52 : 47,595.12 = 10,939 : x
  2. Step 2: Convert to fraction form
    31,715.52/47,595.12 = 10,939/x
  3. Step 3: Cross multiply
    31,715.52x = 47,595.12 × 10,939
  4. Step 4: Simplify right side
    31,715.52x = 520,643,017.68
  5. Step 5: Solve for x
    x = 520,643,017.68/31,715.52
  6. Step 6: Final answer
    x = 16,416.03

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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.