Home / 22,817.16-31,487.32-12,745.76

Finding the Fourth Proportional to 22,817.16, 31,487.32 and 12,745.76

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Solution

The fourth proportional to 22,817.16, 31,487.32 and 12,745.76 is: 17,588.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,817.16 : 31,487.32 = 12,745.76 : x
  2. Step 2: Convert to fraction form
    22,817.16/31,487.32 = 12,745.76/x
  3. Step 3: Cross multiply
    22,817.16x = 31,487.32 × 12,745.76
  4. Step 4: Simplify right side
    22,817.16x = 401,329,823.76
  5. Step 5: Solve for x
    x = 401,329,823.76/22,817.16
  6. Step 6: Final answer
    x = 17,588.95

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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.