Home / 19,947.80-29,921.70-8,850.20

Finding the Fourth Proportional to 19,947.80, 29,921.70 and 8,850.20

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Solution

The fourth proportional to 19,947.80, 29,921.70 and 8,850.20 is: 13,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.80 : 29,921.70 = 8,850.20 : x
  2. Step 2: Convert to fraction form
    19,947.80/29,921.70 = 8,850.20/x
  3. Step 3: Cross multiply
    19,947.80x = 29,921.70 × 8,850.20
  4. Step 4: Simplify right side
    19,947.80x = 264,813,029.34
  5. Step 5: Solve for x
    x = 264,813,029.34/19,947.80
  6. Step 6: Final answer
    x = 13,275.30

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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.