Home / 22,181.64-30,610.62-12,750.18

Finding the Fourth Proportional to 22,181.64, 30,610.62 and 12,750.18

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Solution

The fourth proportional to 22,181.64, 30,610.62 and 12,750.18 is: 17,595.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,181.64 : 30,610.62 = 12,750.18 : x
  2. Step 2: Convert to fraction form
    22,181.64/30,610.62 = 12,750.18/x
  3. Step 3: Cross multiply
    22,181.64x = 30,610.62 × 12,750.18
  4. Step 4: Simplify right side
    22,181.64x = 390,290,914.91
  5. Step 5: Solve for x
    x = 390,290,914.91/22,181.64
  6. Step 6: Final answer
    x = 17,595.22

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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.