Home / 22,745.28-31,389.12-13,314.24

Finding the Fourth Proportional to 22,745.28, 31,389.12 and 13,314.24

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Solution

The fourth proportional to 22,745.28, 31,389.12 and 13,314.24 is: 18,374.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.28 : 31,389.12 = 13,314.24 : x
  2. Step 2: Convert to fraction form
    22,745.28/31,389.12 = 13,314.24/x
  3. Step 3: Cross multiply
    22,745.28x = 31,389.12 × 13,314.24
  4. Step 4: Simplify right side
    22,745.28x = 417,922,277.07
  5. Step 5: Solve for x
    x = 417,922,277.07/22,745.28
  6. Step 6: Final answer
    x = 18,374.02

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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.