Home / 17,878.24-24,669.30-9,920.44

Finding the Fourth Proportional to 17,878.24, 24,669.30 and 9,920.44

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Solution

The fourth proportional to 17,878.24, 24,669.30 and 9,920.44 is: 13,688.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,878.24 : 24,669.30 = 9,920.44 : x
  2. Step 2: Convert to fraction form
    17,878.24/24,669.30 = 9,920.44/x
  3. Step 3: Cross multiply
    17,878.24x = 24,669.30 × 9,920.44
  4. Step 4: Simplify right side
    17,878.24x = 244,730,310.49
  5. Step 5: Solve for x
    x = 244,730,310.49/17,878.24
  6. Step 6: Final answer
    x = 13,688.72

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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.