Home / 22,062.39-30,445.79-11,991.16

Finding the Fourth Proportional to 22,062.39, 30,445.79 and 11,991.16

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Solution

The fourth proportional to 22,062.39, 30,445.79 and 11,991.16 is: 16,547.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,062.39 : 30,445.79 = 11,991.16 : x
  2. Step 2: Convert to fraction form
    22,062.39/30,445.79 = 11,991.16/x
  3. Step 3: Cross multiply
    22,062.39x = 30,445.79 × 11,991.16
  4. Step 4: Simplify right side
    22,062.39x = 365,080,339.22
  5. Step 5: Solve for x
    x = 365,080,339.22/22,062.39
  6. Step 6: Final answer
    x = 16,547.63

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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.