Home / 21,409.57-32,120.84-15,181.62

Finding the Fourth Proportional to 21,409.57, 32,120.84 and 15,181.62

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Solution

The fourth proportional to 21,409.57, 32,120.84 and 15,181.62 is: 22,777.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.57 : 32,120.84 = 15,181.62 : x
  2. Step 2: Convert to fraction form
    21,409.57/32,120.84 = 15,181.62/x
  3. Step 3: Cross multiply
    21,409.57x = 32,120.84 × 15,181.62
  4. Step 4: Simplify right side
    21,409.57x = 487,646,386.96
  5. Step 5: Solve for x
    x = 487,646,386.96/21,409.57
  6. Step 6: Final answer
    x = 22,777.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.