Home / 31,688.26-47,528.79-8,316.52

Finding the Fourth Proportional to 31,688.26, 47,528.79 and 8,316.52

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Solution

The fourth proportional to 31,688.26, 47,528.79 and 8,316.52 is: 12,473.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.26 : 47,528.79 = 8,316.52 : x
  2. Step 2: Convert to fraction form
    31,688.26/47,528.79 = 8,316.52/x
  3. Step 3: Cross multiply
    31,688.26x = 47,528.79 × 8,316.52
  4. Step 4: Simplify right side
    31,688.26x = 395,274,132.61
  5. Step 5: Solve for x
    x = 395,274,132.61/31,688.26
  6. Step 6: Final answer
    x = 12,473.84

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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.