Home / 22,455.66-30,991.70-18,672.32

Finding the Fourth Proportional to 22,455.66, 30,991.70 and 18,672.32

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Solution

The fourth proportional to 22,455.66, 30,991.70 and 18,672.32 is: 25,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.66 : 30,991.70 = 18,672.32 : x
  2. Step 2: Convert to fraction form
    22,455.66/30,991.70 = 18,672.32/x
  3. Step 3: Cross multiply
    22,455.66x = 30,991.70 × 18,672.32
  4. Step 4: Simplify right side
    22,455.66x = 578,686,939.74
  5. Step 5: Solve for x
    x = 578,686,939.74/22,455.66
  6. Step 6: Final answer
    x = 25,770.20

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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.