Home / 22,674.38-31,288.47-21,002.54

Finding the Fourth Proportional to 22,674.38, 31,288.47 and 21,002.54

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Solution

The fourth proportional to 22,674.38, 31,288.47 and 21,002.54 is: 28,981.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,674.38 : 31,288.47 = 21,002.54 : x
  2. Step 2: Convert to fraction form
    22,674.38/31,288.47 = 21,002.54/x
  3. Step 3: Cross multiply
    22,674.38x = 31,288.47 × 21,002.54
  4. Step 4: Simplify right side
    22,674.38x = 657,137,186.27
  5. Step 5: Solve for x
    x = 657,137,186.27/22,674.38
  6. Step 6: Final answer
    x = 28,981.49

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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.