Home / 22,579.86-31,161.96-12,509.26

Finding the Fourth Proportional to 22,579.86, 31,161.96 and 12,509.26

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Solution

The fourth proportional to 22,579.86, 31,161.96 and 12,509.26 is: 17,263.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.86 : 31,161.96 = 12,509.26 : x
  2. Step 2: Convert to fraction form
    22,579.86/31,161.96 = 12,509.26/x
  3. Step 3: Cross multiply
    22,579.86x = 31,161.96 × 12,509.26
  4. Step 4: Simplify right side
    22,579.86x = 389,813,059.75
  5. Step 5: Solve for x
    x = 389,813,059.75/22,579.86
  6. Step 6: Final answer
    x = 17,263.75

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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.