Home / 22,991.16-31,695.66-19,440.12

Finding the Fourth Proportional to 22,991.16, 31,695.66 and 19,440.12

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Solution

The fourth proportional to 22,991.16, 31,695.66 and 19,440.12 is: 26,800.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,991.16 : 31,695.66 = 19,440.12 : x
  2. Step 2: Convert to fraction form
    22,991.16/31,695.66 = 19,440.12/x
  3. Step 3: Cross multiply
    22,991.16x = 31,695.66 × 19,440.12
  4. Step 4: Simplify right side
    22,991.16x = 616,167,433.88
  5. Step 5: Solve for x
    x = 616,167,433.88/22,991.16
  6. Step 6: Final answer
    x = 26,800.19

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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.