Home / 31,855.21-47,788.83-10,509.14

Finding the Fourth Proportional to 31,855.21, 47,788.83 and 10,509.14

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Solution

The fourth proportional to 31,855.21, 47,788.83 and 10,509.14 is: 15,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,855.21 : 47,788.83 = 10,509.14 : x
  2. Step 2: Convert to fraction form
    31,855.21/47,788.83 = 10,509.14/x
  3. Step 3: Cross multiply
    31,855.21x = 47,788.83 × 10,509.14
  4. Step 4: Simplify right side
    31,855.21x = 502,219,624.38
  5. Step 5: Solve for x
    x = 502,219,624.38/31,855.21
  6. Step 6: Final answer
    x = 15,765.70

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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.