Home / 34,121.55-47,085.80-18,805.06

Finding the Fourth Proportional to 34,121.55, 47,085.80 and 18,805.06

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Solution

The fourth proportional to 34,121.55, 47,085.80 and 18,805.06 is: 25,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,121.55 : 47,085.80 = 18,805.06 : x
  2. Step 2: Convert to fraction form
    34,121.55/47,085.80 = 18,805.06/x
  3. Step 3: Cross multiply
    34,121.55x = 47,085.80 × 18,805.06
  4. Step 4: Simplify right side
    34,121.55x = 885,451,082.41
  5. Step 5: Solve for x
    x = 885,451,082.41/34,121.55
  6. Step 6: Final answer
    x = 25,949.91

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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.