Home / 22,217.22-30,666.60-12,792.06

Finding the Fourth Proportional to 22,217.22, 30,666.60 and 12,792.06

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Solution

The fourth proportional to 22,217.22, 30,666.60 and 12,792.06 is: 17,656.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.22 : 30,666.60 = 12,792.06 : x
  2. Step 2: Convert to fraction form
    22,217.22/30,666.60 = 12,792.06/x
  3. Step 3: Cross multiply
    22,217.22x = 30,666.60 × 12,792.06
  4. Step 4: Simplify right side
    22,217.22x = 392,288,987.20
  5. Step 5: Solve for x
    x = 392,288,987.20/22,217.22
  6. Step 6: Final answer
    x = 17,656.98

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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.