Home / 32,921.10-49,418.10-20,455.20

Finding the Fourth Proportional to 32,921.10, 49,418.10 and 20,455.20

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Solution

The fourth proportional to 32,921.10, 49,418.10 and 20,455.20 is: 30,705.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,921.10 : 49,418.10 = 20,455.20 : x
  2. Step 2: Convert to fraction form
    32,921.10/49,418.10 = 20,455.20/x
  3. Step 3: Cross multiply
    32,921.10x = 49,418.10 × 20,455.20
  4. Step 4: Simplify right side
    32,921.10x = 1,010,857,119.12
  5. Step 5: Solve for x
    x = 1,010,857,119.12/32,921.10
  6. Step 6: Final answer
    x = 30,705.45

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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.