Home / 23,112.66-31,885.18-13,675.76

Finding the Fourth Proportional to 23,112.66, 31,885.18 and 13,675.76

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Solution

The fourth proportional to 23,112.66, 31,885.18 and 13,675.76 is: 18,866.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,112.66 : 31,885.18 = 13,675.76 : x
  2. Step 2: Convert to fraction form
    23,112.66/31,885.18 = 13,675.76/x
  3. Step 3: Cross multiply
    23,112.66x = 31,885.18 × 13,675.76
  4. Step 4: Simplify right side
    23,112.66x = 436,054,069.24
  5. Step 5: Solve for x
    x = 436,054,069.24/23,112.66
  6. Step 6: Final answer
    x = 18,866.46

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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.