Home / 22,942.83-31,661.12-13,389.28

Finding the Fourth Proportional to 22,942.83, 31,661.12 and 13,389.28

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Solution

The fourth proportional to 22,942.83, 31,661.12 and 13,389.28 is: 18,477.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,942.83 : 31,661.12 = 13,389.28 : x
  2. Step 2: Convert to fraction form
    22,942.83/31,661.12 = 13,389.28/x
  3. Step 3: Cross multiply
    22,942.83x = 31,661.12 × 13,389.28
  4. Step 4: Simplify right side
    22,942.83x = 423,919,600.79
  5. Step 5: Solve for x
    x = 423,919,600.79/22,942.83
  6. Step 6: Final answer
    x = 18,477.21

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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.