Home / 31,678.32-47,530.20-11,962.44

Finding the Fourth Proportional to 31,678.32, 47,530.20 and 11,962.44

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Solution

The fourth proportional to 31,678.32, 47,530.20 and 11,962.44 is: 17,948.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,678.32 : 47,530.20 = 11,962.44 : x
  2. Step 2: Convert to fraction form
    31,678.32/47,530.20 = 11,962.44/x
  3. Step 3: Cross multiply
    31,678.32x = 47,530.20 × 11,962.44
  4. Step 4: Simplify right side
    31,678.32x = 568,577,165.69
  5. Step 5: Solve for x
    x = 568,577,165.69/31,678.32
  6. Step 6: Final answer
    x = 17,948.46

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1.5x scale

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.