Home / 31,709.76-47,561.04-8,338.02

Finding the Fourth Proportional to 31,709.76, 47,561.04 and 8,338.02

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Solution

The fourth proportional to 31,709.76, 47,561.04 and 8,338.02 is: 12,506.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709.76 : 47,561.04 = 8,338.02 : x
  2. Step 2: Convert to fraction form
    31,709.76/47,561.04 = 8,338.02/x
  3. Step 3: Cross multiply
    31,709.76x = 47,561.04 × 8,338.02
  4. Step 4: Simplify right side
    31,709.76x = 396,564,902.74
  5. Step 5: Solve for x
    x = 396,564,902.74/31,709.76
  6. Step 6: Final answer
    x = 12,506.08

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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.