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Finding the Fourth Proportional to 35,755.56, 49,345.03 and 20,648.86

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Solution

The fourth proportional to 35,755.56, 49,345.03 and 20,648.86 is: 28,496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,755.56 : 49,345.03 = 20,648.86 : x
  2. Step 2: Convert to fraction form
    35,755.56/49,345.03 = 20,648.86/x
  3. Step 3: Cross multiply
    35,755.56x = 49,345.03 × 20,648.86
  4. Step 4: Simplify right side
    35,755.56x = 1,018,918,518.61
  5. Step 5: Solve for x
    x = 1,018,918,518.61/35,755.56
  6. Step 6: Final answer
    x = 28,496.79

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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.