Home / 19,788.24-29,682.10-7,947.25

Finding the Fourth Proportional to 19,788.24, 29,682.10 and 7,947.25

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Solution

The fourth proportional to 19,788.24, 29,682.10 and 7,947.25 is: 11,920.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.24 : 29,682.10 = 7,947.25 : x
  2. Step 2: Convert to fraction form
    19,788.24/29,682.10 = 7,947.25/x
  3. Step 3: Cross multiply
    19,788.24x = 29,682.10 × 7,947.25
  4. Step 4: Simplify right side
    19,788.24x = 235,891,069.23
  5. Step 5: Solve for x
    x = 235,891,069.23/19,788.24
  6. Step 6: Final answer
    x = 11,920.77

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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.