Home / 28,115.43-42,152.31-17,019.50

Finding the Fourth Proportional to 28,115.43, 42,152.31 and 17,019.50

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Solution

The fourth proportional to 28,115.43, 42,152.31 and 17,019.50 is: 25,516.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.43 : 42,152.31 = 17,019.50 : x
  2. Step 2: Convert to fraction form
    28,115.43/42,152.31 = 17,019.50/x
  3. Step 3: Cross multiply
    28,115.43x = 42,152.31 × 17,019.50
  4. Step 4: Simplify right side
    28,115.43x = 717,411,240.05
  5. Step 5: Solve for x
    x = 717,411,240.05/28,115.43
  6. Step 6: Final answer
    x = 25,516.64

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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.