Home / 22,120.64-30,503.04-14,163.20

Finding the Fourth Proportional to 22,120.64, 30,503.04 and 14,163.20

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Solution

The fourth proportional to 22,120.64, 30,503.04 and 14,163.20 is: 19,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,120.64 : 30,503.04 = 14,163.20 : x
  2. Step 2: Convert to fraction form
    22,120.64/30,503.04 = 14,163.20/x
  3. Step 3: Cross multiply
    22,120.64x = 30,503.04 × 14,163.20
  4. Step 4: Simplify right side
    22,120.64x = 432,020,656.13
  5. Step 5: Solve for x
    x = 432,020,656.13/22,120.64
  6. Step 6: Final answer
    x = 19,530.21

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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.