Home / 22,115.25-30,518.43-12,043.47

Finding the Fourth Proportional to 22,115.25, 30,518.43 and 12,043.47

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Solution

The fourth proportional to 22,115.25, 30,518.43 and 12,043.47 is: 16,619.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.25 : 30,518.43 = 12,043.47 : x
  2. Step 2: Convert to fraction form
    22,115.25/30,518.43 = 12,043.47/x
  3. Step 3: Cross multiply
    22,115.25x = 30,518.43 × 12,043.47
  4. Step 4: Simplify right side
    22,115.25x = 367,547,796.15
  5. Step 5: Solve for x
    x = 367,547,796.15/22,115.25
  6. Step 6: Final answer
    x = 16,619.65

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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.