Home / 31,973.28-47,959.88-9,786.39

Finding the Fourth Proportional to 31,973.28, 47,959.88 and 9,786.39

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Solution

The fourth proportional to 31,973.28, 47,959.88 and 9,786.39 is: 14,679.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,973.28 : 47,959.88 = 9,786.39 : x
  2. Step 2: Convert to fraction form
    31,973.28/47,959.88 = 9,786.39/x
  3. Step 3: Cross multiply
    31,973.28x = 47,959.88 × 9,786.39
  4. Step 4: Simplify right side
    31,973.28x = 469,354,041.10
  5. Step 5: Solve for x
    x = 469,354,041.10/31,973.28
  6. Step 6: Final answer
    x = 14,679.57

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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.