Home / 31,975.72-47,966.78-9,788.84

Finding the Fourth Proportional to 31,975.72, 47,966.78 and 9,788.84

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Solution

The fourth proportional to 31,975.72, 47,966.78 and 9,788.84 is: 14,684.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,975.72 : 47,966.78 = 9,788.84 : x
  2. Step 2: Convert to fraction form
    31,975.72/47,966.78 = 9,788.84/x
  3. Step 3: Cross multiply
    31,975.72x = 47,966.78 × 9,788.84
  4. Step 4: Simplify right side
    31,975.72x = 469,539,134.74
  5. Step 5: Solve for x
    x = 469,539,134.74/31,975.72
  6. Step 6: Final answer
    x = 14,684.24

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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.