Home / 22,618.71-31,209.84-13,056.39

Finding the Fourth Proportional to 22,618.71, 31,209.84 and 13,056.39

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Solution

The fourth proportional to 22,618.71, 31,209.84 and 13,056.39 is: 18,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,618.71 : 31,209.84 = 13,056.39 : x
  2. Step 2: Convert to fraction form
    22,618.71/31,209.84 = 13,056.39/x
  3. Step 3: Cross multiply
    22,618.71x = 31,209.84 × 13,056.39
  4. Step 4: Simplify right side
    22,618.71x = 407,487,842.88
  5. Step 5: Solve for x
    x = 407,487,842.88/22,618.71
  6. Step 6: Final answer
    x = 18,015.52

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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.