Home / 35,647.81-49,190.63-21,304.78

Finding the Fourth Proportional to 35,647.81, 49,190.63 and 21,304.78

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Solution

The fourth proportional to 35,647.81, 49,190.63 and 21,304.78 is: 29,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,647.81 : 49,190.63 = 21,304.78 : x
  2. Step 2: Convert to fraction form
    35,647.81/49,190.63 = 21,304.78/x
  3. Step 3: Cross multiply
    35,647.81x = 49,190.63 × 21,304.78
  4. Step 4: Simplify right side
    35,647.81x = 1,047,995,550.21
  5. Step 5: Solve for x
    x = 1,047,995,550.21/35,647.81
  6. Step 6: Final answer
    x = 29,398.60

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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.