Home / 35,530.24-49,028.88-20,422.12

Finding the Fourth Proportional to 35,530.24, 49,028.88 and 20,422.12

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Solution

The fourth proportional to 35,530.24, 49,028.88 and 20,422.12 is: 28,180.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,530.24 : 49,028.88 = 20,422.12 : x
  2. Step 2: Convert to fraction form
    35,530.24/49,028.88 = 20,422.12/x
  3. Step 3: Cross multiply
    35,530.24x = 49,028.88 × 20,422.12
  4. Step 4: Simplify right side
    35,530.24x = 1,001,273,670.83
  5. Step 5: Solve for x
    x = 1,001,273,670.83/35,530.24
  6. Step 6: Final answer
    x = 28,180.89

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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.