Home / 21,044.40-29,041.04-11,612.80

Finding the Fourth Proportional to 21,044.40, 29,041.04 and 11,612.80

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Solution

The fourth proportional to 21,044.40, 29,041.04 and 11,612.80 is: 16,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.40 : 29,041.04 = 11,612.80 : x
  2. Step 2: Convert to fraction form
    21,044.40/29,041.04 = 11,612.80/x
  3. Step 3: Cross multiply
    21,044.40x = 29,041.04 × 11,612.80
  4. Step 4: Simplify right side
    21,044.40x = 337,247,789.31
  5. Step 5: Solve for x
    x = 337,247,789.31/21,044.40
  6. Step 6: Final answer
    x = 16,025.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.