Home / 42,138.01-63,207.42-17,173

Finding the Fourth Proportional to 42,138.01, 63,207.42 and 17,173

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Solution

The fourth proportional to 42,138.01, 63,207.42 and 17,173 is: 25,759.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,138.01 : 63,207.42 = 17,173 : x
  2. Step 2: Convert to fraction form
    42,138.01/63,207.42 = 17,173/x
  3. Step 3: Cross multiply
    42,138.01x = 63,207.42 × 17,173
  4. Step 4: Simplify right side
    42,138.01x = 1,085,461,023.66
  5. Step 5: Solve for x
    x = 1,085,461,023.66/42,138.01
  6. Step 6: Final answer
    x = 25,759.67

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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.