Home / 34,289.76-47,324.10-20,865.66

Finding the Fourth Proportional to 34,289.76, 47,324.10 and 20,865.66

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Solution

The fourth proportional to 34,289.76, 47,324.10 and 20,865.66 is: 28,797.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,289.76 : 47,324.10 = 20,865.66 : x
  2. Step 2: Convert to fraction form
    34,289.76/47,324.10 = 20,865.66/x
  3. Step 3: Cross multiply
    34,289.76x = 47,324.10 × 20,865.66
  4. Step 4: Simplify right side
    34,289.76x = 987,448,580.41
  5. Step 5: Solve for x
    x = 987,448,580.41/34,289.76
  6. Step 6: Final answer
    x = 28,797.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.