Home / 22,115.58-30,511.13-14,156.52

Finding the Fourth Proportional to 22,115.58, 30,511.13 and 14,156.52

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Solution

The fourth proportional to 22,115.58, 30,511.13 and 14,156.52 is: 19,530.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.58 : 30,511.13 = 14,156.52 : x
  2. Step 2: Convert to fraction form
    22,115.58/30,511.13 = 14,156.52/x
  3. Step 3: Cross multiply
    22,115.58x = 30,511.13 × 14,156.52
  4. Step 4: Simplify right side
    22,115.58x = 431,931,351.29
  5. Step 5: Solve for x
    x = 431,931,351.29/22,115.58
  6. Step 6: Final answer
    x = 19,530.64

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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.