Home / 34,769.08-47,974.91-20,431.25

Finding the Fourth Proportional to 34,769.08, 47,974.91 and 20,431.25

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Solution

The fourth proportional to 34,769.08, 47,974.91 and 20,431.25 is: 28,191.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,769.08 : 47,974.91 = 20,431.25 : x
  2. Step 2: Convert to fraction form
    34,769.08/47,974.91 = 20,431.25/x
  3. Step 3: Cross multiply
    34,769.08x = 47,974.91 × 20,431.25
  4. Step 4: Simplify right side
    34,769.08x = 980,187,191.14
  5. Step 5: Solve for x
    x = 980,187,191.14/34,769.08
  6. Step 6: Final answer
    x = 28,191.35

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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.