Home / 30,580.72-42,198.90-17,150.16

Finding the Fourth Proportional to 30,580.72, 42,198.90 and 17,150.16

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Solution

The fourth proportional to 30,580.72, 42,198.90 and 17,150.16 is: 23,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,580.72 : 42,198.90 = 17,150.16 : x
  2. Step 2: Convert to fraction form
    30,580.72/42,198.90 = 17,150.16/x
  3. Step 3: Cross multiply
    30,580.72x = 42,198.90 × 17,150.16
  4. Step 4: Simplify right side
    30,580.72x = 723,717,886.82
  5. Step 5: Solve for x
    x = 723,717,886.82/30,580.72
  6. Step 6: Final answer
    x = 23,665.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.