Home / 28,115.03-42,151.72-17,019.10

Finding the Fourth Proportional to 28,115.03, 42,151.72 and 17,019.10

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Solution

The fourth proportional to 28,115.03, 42,151.72 and 17,019.10 is: 25,516.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.03 : 42,151.72 = 17,019.10 : x
  2. Step 2: Convert to fraction form
    28,115.03/42,151.72 = 17,019.10/x
  3. Step 3: Cross multiply
    28,115.03x = 42,151.72 × 17,019.10
  4. Step 4: Simplify right side
    28,115.03x = 717,384,094.94
  5. Step 5: Solve for x
    x = 717,384,094.94/28,115.03
  6. Step 6: Final answer
    x = 25,516.03

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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.