Home / 22,800.09-31,455.18-13,238.34

Finding the Fourth Proportional to 22,800.09, 31,455.18 and 13,238.34

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Solution

The fourth proportional to 22,800.09, 31,455.18 and 13,238.34 is: 18,263.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,800.09 : 31,455.18 = 13,238.34 : x
  2. Step 2: Convert to fraction form
    22,800.09/31,455.18 = 13,238.34/x
  3. Step 3: Cross multiply
    22,800.09x = 31,455.18 × 13,238.34
  4. Step 4: Simplify right side
    22,800.09x = 416,414,354.66
  5. Step 5: Solve for x
    x = 416,414,354.66/22,800.09
  6. Step 6: Final answer
    x = 18,263.72

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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.