Home / 22,035.12-30,431.16-18,872.88

Finding the Fourth Proportional to 22,035.12, 30,431.16 and 18,872.88

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Solution

The fourth proportional to 22,035.12, 30,431.16 and 18,872.88 is: 26,064.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,035.12 : 30,431.16 = 18,872.88 : x
  2. Step 2: Convert to fraction form
    22,035.12/30,431.16 = 18,872.88/x
  3. Step 3: Cross multiply
    22,035.12x = 30,431.16 × 18,872.88
  4. Step 4: Simplify right side
    22,035.12x = 574,323,630.94
  5. Step 5: Solve for x
    x = 574,323,630.94/22,035.12
  6. Step 6: Final answer
    x = 26,064.01

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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.