Home / 21,382.05-29,466.41-18,582.69

Finding the Fourth Proportional to 21,382.05, 29,466.41 and 18,582.69

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Solution

The fourth proportional to 21,382.05, 29,466.41 and 18,582.69 is: 25,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.05 : 29,466.41 = 18,582.69 : x
  2. Step 2: Convert to fraction form
    21,382.05/29,466.41 = 18,582.69/x
  3. Step 3: Cross multiply
    21,382.05x = 29,466.41 × 18,582.69
  4. Step 4: Simplify right side
    21,382.05x = 547,565,069.53
  5. Step 5: Solve for x
    x = 547,565,069.53/21,382.05
  6. Step 6: Final answer
    x = 25,608.63

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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.