Home / 22,761.17-31,410.54-12,690.24

Finding the Fourth Proportional to 22,761.17, 31,410.54 and 12,690.24

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Solution

The fourth proportional to 22,761.17, 31,410.54 and 12,690.24 is: 17,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,761.17 : 31,410.54 = 12,690.24 : x
  2. Step 2: Convert to fraction form
    22,761.17/31,410.54 = 12,690.24/x
  3. Step 3: Cross multiply
    22,761.17x = 31,410.54 × 12,690.24
  4. Step 4: Simplify right side
    22,761.17x = 398,607,291.13
  5. Step 5: Solve for x
    x = 398,607,291.13/22,761.17
  6. Step 6: Final answer
    x = 17,512.60

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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.