Home / 31,683.32-47,530.12-11,963.60

Finding the Fourth Proportional to 31,683.32, 47,530.12 and 11,963.60

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Solution

The fourth proportional to 31,683.32, 47,530.12 and 11,963.60 is: 17,947.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,683.32 : 47,530.12 = 11,963.60 : x
  2. Step 2: Convert to fraction form
    31,683.32/47,530.12 = 11,963.60/x
  3. Step 3: Cross multiply
    31,683.32x = 47,530.12 × 11,963.60
  4. Step 4: Simplify right side
    31,683.32x = 568,631,343.63
  5. Step 5: Solve for x
    x = 568,631,343.63/31,683.32
  6. Step 6: Final answer
    x = 17,947.34

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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.