Home / 19,430.92-29,139.22-6,947.56

Finding the Fourth Proportional to 19,430.92, 29,139.22 and 6,947.56

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Solution

The fourth proportional to 19,430.92, 29,139.22 and 6,947.56 is: 10,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.92 : 29,139.22 = 6,947.56 : x
  2. Step 2: Convert to fraction form
    19,430.92/29,139.22 = 6,947.56/x
  3. Step 3: Cross multiply
    19,430.92x = 29,139.22 × 6,947.56
  4. Step 4: Simplify right side
    19,430.92x = 202,446,479.30
  5. Step 5: Solve for x
    x = 202,446,479.30/19,430.92
  6. Step 6: Final answer
    x = 10,418.78

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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.