Home / 22,595.24-31,180.79-13,639.47

Finding the Fourth Proportional to 22,595.24, 31,180.79 and 13,639.47

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Solution

The fourth proportional to 22,595.24, 31,180.79 and 13,639.47 is: 18,822.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,595.24 : 31,180.79 = 13,639.47 : x
  2. Step 2: Convert to fraction form
    22,595.24/31,180.79 = 13,639.47/x
  3. Step 3: Cross multiply
    22,595.24x = 31,180.79 × 13,639.47
  4. Step 4: Simplify right side
    22,595.24x = 425,289,449.78
  5. Step 5: Solve for x
    x = 425,289,449.78/22,595.24
  6. Step 6: Final answer
    x = 18,822.09

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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.