Home / 30,538.76-42,142.62-17,110.82

Finding the Fourth Proportional to 30,538.76, 42,142.62 and 17,110.82

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Solution

The fourth proportional to 30,538.76, 42,142.62 and 17,110.82 is: 23,612.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,538.76 : 42,142.62 = 17,110.82 : x
  2. Step 2: Convert to fraction form
    30,538.76/42,142.62 = 17,110.82/x
  3. Step 3: Cross multiply
    30,538.76x = 42,142.62 × 17,110.82
  4. Step 4: Simplify right side
    30,538.76x = 721,094,574.44
  5. Step 5: Solve for x
    x = 721,094,574.44/30,538.76
  6. Step 6: Final answer
    x = 23,612.44

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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.