Home / 31,903.72-43,981.48-22,442.92

Finding the Fourth Proportional to 31,903.72, 43,981.48 and 22,442.92

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Solution

The fourth proportional to 31,903.72, 43,981.48 and 22,442.92 is: 30,939.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,903.72 : 43,981.48 = 22,442.92 : x
  2. Step 2: Convert to fraction form
    31,903.72/43,981.48 = 22,442.92/x
  3. Step 3: Cross multiply
    31,903.72x = 43,981.48 × 22,442.92
  4. Step 4: Simplify right side
    31,903.72x = 987,072,837.12
  5. Step 5: Solve for x
    x = 987,072,837.12/31,903.72
  6. Step 6: Final answer
    x = 30,939.11

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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.