Home / 21,180.02-31,769.48-5,597.78

Finding the Fourth Proportional to 21,180.02, 31,769.48 and 5,597.78

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Solution

The fourth proportional to 21,180.02, 31,769.48 and 5,597.78 is: 8,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180.02 : 31,769.48 = 5,597.78 : x
  2. Step 2: Convert to fraction form
    21,180.02/31,769.48 = 5,597.78/x
  3. Step 3: Cross multiply
    21,180.02x = 31,769.48 × 5,597.78
  4. Step 4: Simplify right side
    21,180.02x = 177,838,414.90
  5. Step 5: Solve for x
    x = 177,838,414.90/21,180.02
  6. Step 6: Final answer
    x = 8,396.52

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1.5x scale

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.