Home / 30,537.42-42,143.75-17,108.43

Finding the Fourth Proportional to 30,537.42, 42,143.75 and 17,108.43

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Solution

The fourth proportional to 30,537.42, 42,143.75 and 17,108.43 is: 23,610.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,537.42 : 42,143.75 = 17,108.43 : x
  2. Step 2: Convert to fraction form
    30,537.42/42,143.75 = 17,108.43/x
  3. Step 3: Cross multiply
    30,537.42x = 42,143.75 × 17,108.43
  4. Step 4: Simplify right side
    30,537.42x = 721,013,396.81
  5. Step 5: Solve for x
    x = 721,013,396.81/30,537.42
  6. Step 6: Final answer
    x = 23,610.82

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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.