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Finding the Fourth Proportional to 35,699.78, 49,264.53 and 21,550.16

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Solution

The fourth proportional to 35,699.78, 49,264.53 and 21,550.16 is: 29,738.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,699.78 : 49,264.53 = 21,550.16 : x
  2. Step 2: Convert to fraction form
    35,699.78/49,264.53 = 21,550.16/x
  3. Step 3: Cross multiply
    35,699.78x = 49,264.53 × 21,550.16
  4. Step 4: Simplify right side
    35,699.78x = 1,061,658,503.82
  5. Step 5: Solve for x
    x = 1,061,658,503.82/35,699.78
  6. Step 6: Final answer
    x = 29,738.52

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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.