Home / 20,600.64-28,395.36-16,116.96

Finding the Fourth Proportional to 20,600.64, 28,395.36 and 16,116.96

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Solution

The fourth proportional to 20,600.64, 28,395.36 and 16,116.96 is: 22,215.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.64 : 28,395.36 = 16,116.96 : x
  2. Step 2: Convert to fraction form
    20,600.64/28,395.36 = 16,116.96/x
  3. Step 3: Cross multiply
    20,600.64x = 28,395.36 × 16,116.96
  4. Step 4: Simplify right side
    20,600.64x = 457,646,881.31
  5. Step 5: Solve for x
    x = 457,646,881.31/20,600.64
  6. Step 6: Final answer
    x = 22,215.18

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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.