Home / 20,238.78-27,918.90-16,466.16

Finding the Fourth Proportional to 20,238.78, 27,918.90 and 16,466.16

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Solution

The fourth proportional to 20,238.78, 27,918.90 and 16,466.16 is: 22,714.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.78 : 27,918.90 = 16,466.16 : x
  2. Step 2: Convert to fraction form
    20,238.78/27,918.90 = 16,466.16/x
  3. Step 3: Cross multiply
    20,238.78x = 27,918.90 × 16,466.16
  4. Step 4: Simplify right side
    20,238.78x = 459,717,074.42
  5. Step 5: Solve for x
    x = 459,717,074.42/20,238.78
  6. Step 6: Final answer
    x = 22,714.66

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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.