Home / 19,478.28-29,219.04-8,385.24

Finding the Fourth Proportional to 19,478.28, 29,219.04 and 8,385.24

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Solution

The fourth proportional to 19,478.28, 29,219.04 and 8,385.24 is: 12,578.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.28 : 29,219.04 = 8,385.24 : x
  2. Step 2: Convert to fraction form
    19,478.28/29,219.04 = 8,385.24/x
  3. Step 3: Cross multiply
    19,478.28x = 29,219.04 × 8,385.24
  4. Step 4: Simplify right side
    19,478.28x = 245,008,662.97
  5. Step 5: Solve for x
    x = 245,008,662.97/19,478.28
  6. Step 6: Final answer
    x = 12,578.56

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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.