Home / 19,722.20-29,568.90-8,029.40

Finding the Fourth Proportional to 19,722.20, 29,568.90 and 8,029.40

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Solution

The fourth proportional to 19,722.20, 29,568.90 and 8,029.40 is: 12,038.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.20 : 29,568.90 = 8,029.40 : x
  2. Step 2: Convert to fraction form
    19,722.20/29,568.90 = 8,029.40/x
  3. Step 3: Cross multiply
    19,722.20x = 29,568.90 × 8,029.40
  4. Step 4: Simplify right side
    19,722.20x = 237,420,525.66
  5. Step 5: Solve for x
    x = 237,420,525.66/19,722.20
  6. Step 6: Final answer
    x = 12,038.24

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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.