Home / 22,617.60-31,212.44-12,545.84

Finding the Fourth Proportional to 22,617.60, 31,212.44 and 12,545.84

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Solution

The fourth proportional to 22,617.60, 31,212.44 and 12,545.84 is: 17,313.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,617.60 : 31,212.44 = 12,545.84 : x
  2. Step 2: Convert to fraction form
    22,617.60/31,212.44 = 12,545.84/x
  3. Step 3: Cross multiply
    22,617.60x = 31,212.44 × 12,545.84
  4. Step 4: Simplify right side
    22,617.60x = 391,586,278.25
  5. Step 5: Solve for x
    x = 391,586,278.25/22,617.60
  6. Step 6: Final answer
    x = 17,313.34

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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.