Home / 30,541.41-42,147.95-17,112.69

Finding the Fourth Proportional to 30,541.41, 42,147.95 and 17,112.69

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Solution

The fourth proportional to 30,541.41, 42,147.95 and 17,112.69 is: 23,615.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,541.41 : 42,147.95 = 17,112.69 : x
  2. Step 2: Convert to fraction form
    30,541.41/42,147.95 = 17,112.69/x
  3. Step 3: Cross multiply
    30,541.41x = 42,147.95 × 17,112.69
  4. Step 4: Simplify right side
    30,541.41x = 721,264,716.92
  5. Step 5: Solve for x
    x = 721,264,716.92/30,541.41
  6. Step 6: Final answer
    x = 23,615.96

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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.