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Finding the Fourth Proportional to 35,377.64, 48,821.13 and 21,230.49

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Solution

The fourth proportional to 35,377.64, 48,821.13 and 21,230.49 is: 29,298.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,377.64 : 48,821.13 = 21,230.49 : x
  2. Step 2: Convert to fraction form
    35,377.64/48,821.13 = 21,230.49/x
  3. Step 3: Cross multiply
    35,377.64x = 48,821.13 × 21,230.49
  4. Step 4: Simplify right side
    35,377.64x = 1,036,496,512.25
  5. Step 5: Solve for x
    x = 1,036,496,512.25/35,377.64
  6. Step 6: Final answer
    x = 29,298.07

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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.