Home / 28,297.50-42,381.62-13,516.88

Finding the Fourth Proportional to 28,297.50, 42,381.62 and 13,516.88

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Solution

The fourth proportional to 28,297.50, 42,381.62 and 13,516.88 is: 20,244.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,297.50 : 42,381.62 = 13,516.88 : x
  2. Step 2: Convert to fraction form
    28,297.50/42,381.62 = 13,516.88/x
  3. Step 3: Cross multiply
    28,297.50x = 42,381.62 × 13,516.88
  4. Step 4: Simplify right side
    28,297.50x = 572,866,992.25
  5. Step 5: Solve for x
    x = 572,866,992.25/28,297.50
  6. Step 6: Final answer
    x = 20,244.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.