Home / 30,537.18-42,142.53-17,108.55

Finding the Fourth Proportional to 30,537.18, 42,142.53 and 17,108.55

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Solution

The fourth proportional to 30,537.18, 42,142.53 and 17,108.55 is: 23,610.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,537.18 : 42,142.53 = 17,108.55 : x
  2. Step 2: Convert to fraction form
    30,537.18/42,142.53 = 17,108.55/x
  3. Step 3: Cross multiply
    30,537.18x = 42,142.53 × 17,108.55
  4. Step 4: Simplify right side
    30,537.18x = 720,997,581.63
  5. Step 5: Solve for x
    x = 720,997,581.63/30,537.18
  6. Step 6: Final answer
    x = 23,610.48

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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.