Home / 22,969.70-31,695.72-12,899.24

Finding the Fourth Proportional to 22,969.70, 31,695.72 and 12,899.24

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Solution

The fourth proportional to 22,969.70, 31,695.72 and 12,899.24 is: 17,799.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,969.70 : 31,695.72 = 12,899.24 : x
  2. Step 2: Convert to fraction form
    22,969.70/31,695.72 = 12,899.24/x
  3. Step 3: Cross multiply
    22,969.70x = 31,695.72 × 12,899.24
  4. Step 4: Simplify right side
    22,969.70x = 408,850,699.25
  5. Step 5: Solve for x
    x = 408,850,699.25/22,969.70
  6. Step 6: Final answer
    x = 17,799.57

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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.