Home / 31,774.28-47,630.43-15,129.84

Finding the Fourth Proportional to 31,774.28, 47,630.43 and 15,129.84

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Solution

The fourth proportional to 31,774.28, 47,630.43 and 15,129.84 is: 22,680.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,774.28 : 47,630.43 = 15,129.84 : x
  2. Step 2: Convert to fraction form
    31,774.28/47,630.43 = 15,129.84/x
  3. Step 3: Cross multiply
    31,774.28x = 47,630.43 × 15,129.84
  4. Step 4: Simplify right side
    31,774.28x = 720,640,785.03
  5. Step 5: Solve for x
    x = 720,640,785.03/31,774.28
  6. Step 6: Final answer
    x = 22,680.01

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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.