Home / 22,729.77-33,908.20-21,138.93

Finding the Fourth Proportional to 22,729.77, 33,908.20 and 21,138.93

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Solution

The fourth proportional to 22,729.77, 33,908.20 and 21,138.93 is: 31,534.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,729.77 : 33,908.20 = 21,138.93 : x
  2. Step 2: Convert to fraction form
    22,729.77/33,908.20 = 21,138.93/x
  3. Step 3: Cross multiply
    22,729.77x = 33,908.20 × 21,138.93
  4. Step 4: Simplify right side
    22,729.77x = 716,783,013.38
  5. Step 5: Solve for x
    x = 716,783,013.38/22,729.77
  6. Step 6: Final answer
    x = 31,534.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.