Home / 35,650.62-49,189.55-21,315.11

Finding the Fourth Proportional to 35,650.62, 49,189.55 and 21,315.11

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Solution

The fourth proportional to 35,650.62, 49,189.55 and 21,315.11 is: 29,409.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,650.62 : 49,189.55 = 21,315.11 : x
  2. Step 2: Convert to fraction form
    35,650.62/49,189.55 = 21,315.11/x
  3. Step 3: Cross multiply
    35,650.62x = 49,189.55 × 21,315.11
  4. Step 4: Simplify right side
    35,650.62x = 1,048,480,316.58
  5. Step 5: Solve for x
    x = 1,048,480,316.58/35,650.62
  6. Step 6: Final answer
    x = 29,409.88

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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.