Home / 22,554.88-31,120.32-13,117.76

Finding the Fourth Proportional to 22,554.88, 31,120.32 and 13,117.76

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Solution

The fourth proportional to 22,554.88, 31,120.32 and 13,117.76 is: 18,099.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,554.88 : 31,120.32 = 13,117.76 : x
  2. Step 2: Convert to fraction form
    22,554.88/31,120.32 = 13,117.76/x
  3. Step 3: Cross multiply
    22,554.88x = 31,120.32 × 13,117.76
  4. Step 4: Simplify right side
    22,554.88x = 408,228,888.88
  5. Step 5: Solve for x
    x = 408,228,888.88/22,554.88
  6. Step 6: Final answer
    x = 18,099.36

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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.