Home / 30,719.77-42,394.63-17,291.88

Finding the Fourth Proportional to 30,719.77, 42,394.63 and 17,291.88

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Solution

The fourth proportional to 30,719.77, 42,394.63 and 17,291.88 is: 23,863.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,719.77 : 42,394.63 = 17,291.88 : x
  2. Step 2: Convert to fraction form
    30,719.77/42,394.63 = 17,291.88/x
  3. Step 3: Cross multiply
    30,719.77x = 42,394.63 × 17,291.88
  4. Step 4: Simplify right side
    30,719.77x = 733,083,003.82
  5. Step 5: Solve for x
    x = 733,083,003.82/30,719.77
  6. Step 6: Final answer
    x = 23,863.56

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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.