Home / 42,121.36-63,138.30-17,150.68

Finding the Fourth Proportional to 42,121.36, 63,138.30 and 17,150.68

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Solution

The fourth proportional to 42,121.36, 63,138.30 and 17,150.68 is: 25,708.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,121.36 : 63,138.30 = 17,150.68 : x
  2. Step 2: Convert to fraction form
    42,121.36/63,138.30 = 17,150.68/x
  3. Step 3: Cross multiply
    42,121.36x = 63,138.30 × 17,150.68
  4. Step 4: Simplify right side
    42,121.36x = 1,082,864,779.04
  5. Step 5: Solve for x
    x = 1,082,864,779.04/42,121.36
  6. Step 6: Final answer
    x = 25,708.21

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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.