Home / 23,018.08-31,766.08-12,949.68

Finding the Fourth Proportional to 23,018.08, 31,766.08 and 12,949.68

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Solution

The fourth proportional to 23,018.08, 31,766.08 and 12,949.68 is: 17,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,018.08 : 31,766.08 = 12,949.68 : x
  2. Step 2: Convert to fraction form
    23,018.08/31,766.08 = 12,949.68/x
  3. Step 3: Cross multiply
    23,018.08x = 31,766.08 × 12,949.68
  4. Step 4: Simplify right side
    23,018.08x = 411,360,570.85
  5. Step 5: Solve for x
    x = 411,360,570.85/23,018.08
  6. Step 6: Final answer
    x = 17,871.19

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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.