Home / 19,943.60-29,929.80-8,265.20

Finding the Fourth Proportional to 19,943.60, 29,929.80 and 8,265.20

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Solution

The fourth proportional to 19,943.60, 29,929.80 and 8,265.20 is: 12,403.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.60 : 29,929.80 = 8,265.20 : x
  2. Step 2: Convert to fraction form
    19,943.60/29,929.80 = 8,265.20/x
  3. Step 3: Cross multiply
    19,943.60x = 29,929.80 × 8,265.20
  4. Step 4: Simplify right side
    19,943.60x = 247,375,782.96
  5. Step 5: Solve for x
    x = 247,375,782.96/19,943.60
  6. Step 6: Final answer
    x = 12,403.77

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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.