Home / 47,247.26-70,847.81-20,615.75

Finding the Fourth Proportional to 47,247.26, 70,847.81 and 20,615.75

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Solution

The fourth proportional to 47,247.26, 70,847.81 and 20,615.75 is: 30,913.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,247.26 : 70,847.81 = 20,615.75 : x
  2. Step 2: Convert to fraction form
    47,247.26/70,847.81 = 20,615.75/x
  3. Step 3: Cross multiply
    47,247.26x = 70,847.81 × 20,615.75
  4. Step 4: Simplify right side
    47,247.26x = 1,460,580,281.69
  5. Step 5: Solve for x
    x = 1,460,580,281.69/47,247.26
  6. Step 6: Final answer
    x = 30,913.55

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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.