Home / 22,585.15-31,164.93-12,511.07

Finding the Fourth Proportional to 22,585.15, 31,164.93 and 12,511.07

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Solution

The fourth proportional to 22,585.15, 31,164.93 and 12,511.07 is: 17,263.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,585.15 : 31,164.93 = 12,511.07 : x
  2. Step 2: Convert to fraction form
    22,585.15/31,164.93 = 12,511.07/x
  3. Step 3: Cross multiply
    22,585.15x = 31,164.93 × 12,511.07
  4. Step 4: Simplify right side
    22,585.15x = 389,906,698.69
  5. Step 5: Solve for x
    x = 389,906,698.69/22,585.15
  6. Step 6: Final answer
    x = 17,263.85

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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.