Home / 35,249-52,830.30-21,200.36

Finding the Fourth Proportional to 35,249, 52,830.30 and 21,200.36

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Solution

The fourth proportional to 35,249, 52,830.30 and 21,200.36 is: 31,774.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,249 : 52,830.30 = 21,200.36 : x
  2. Step 2: Convert to fraction form
    35,249/52,830.30 = 21,200.36/x
  3. Step 3: Cross multiply
    35,249x = 52,830.30 × 21,200.36
  4. Step 4: Simplify right side
    35,249x = 1,120,021,378.91
  5. Step 5: Solve for x
    x = 1,120,021,378.91/35,249
  6. Step 6: Final answer
    x = 31,774.56

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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.