Home / 23,047.76-31,800.84-13,611.44

Finding the Fourth Proportional to 23,047.76, 31,800.84 and 13,611.44

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Solution

The fourth proportional to 23,047.76, 31,800.84 and 13,611.44 is: 18,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,047.76 : 31,800.84 = 13,611.44 : x
  2. Step 2: Convert to fraction form
    23,047.76/31,800.84 = 13,611.44/x
  3. Step 3: Cross multiply
    23,047.76x = 31,800.84 × 13,611.44
  4. Step 4: Simplify right side
    23,047.76x = 432,855,225.61
  5. Step 5: Solve for x
    x = 432,855,225.61/23,047.76
  6. Step 6: Final answer
    x = 18,780.79

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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.