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Finding the Fourth Proportional to 35,661.69, 49,197.66 and 21,506.67

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Solution

The fourth proportional to 35,661.69, 49,197.66 and 21,506.67 is: 29,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,661.69 : 49,197.66 = 21,506.67 : x
  2. Step 2: Convert to fraction form
    35,661.69/49,197.66 = 21,506.67/x
  3. Step 3: Cross multiply
    35,661.69x = 49,197.66 × 21,506.67
  4. Step 4: Simplify right side
    35,661.69x = 1,058,077,838.39
  5. Step 5: Solve for x
    x = 1,058,077,838.39/35,661.69
  6. Step 6: Final answer
    x = 29,669.87

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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.