Home / 34,296.75-47,331.27-20,154.15

Finding the Fourth Proportional to 34,296.75, 47,331.27 and 20,154.15

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Solution

The fourth proportional to 34,296.75, 47,331.27 and 20,154.15 is: 27,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,296.75 : 47,331.27 = 20,154.15 : x
  2. Step 2: Convert to fraction form
    34,296.75/47,331.27 = 20,154.15/x
  3. Step 3: Cross multiply
    34,296.75x = 47,331.27 × 20,154.15
  4. Step 4: Simplify right side
    34,296.75x = 953,921,515.27
  5. Step 5: Solve for x
    x = 953,921,515.27/34,296.75
  6. Step 6: Final answer
    x = 27,813.76

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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.