Home / 28,398.87-39,187.62-16,466.22

Finding the Fourth Proportional to 28,398.87, 39,187.62 and 16,466.22

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Solution

The fourth proportional to 28,398.87, 39,187.62 and 16,466.22 is: 22,721.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.87 : 39,187.62 = 16,466.22 : x
  2. Step 2: Convert to fraction form
    28,398.87/39,187.62 = 16,466.22/x
  3. Step 3: Cross multiply
    28,398.87x = 39,187.62 × 16,466.22
  4. Step 4: Simplify right side
    28,398.87x = 645,271,972.20
  5. Step 5: Solve for x
    x = 645,271,972.20/28,398.87
  6. Step 6: Final answer
    x = 22,721.75

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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.