Home / 30,856.16-42,581.44-16,708.96

Finding the Fourth Proportional to 30,856.16, 42,581.44 and 16,708.96

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Solution

The fourth proportional to 30,856.16, 42,581.44 and 16,708.96 is: 23,058.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,856.16 : 42,581.44 = 16,708.96 : x
  2. Step 2: Convert to fraction form
    30,856.16/42,581.44 = 16,708.96/x
  3. Step 3: Cross multiply
    30,856.16x = 42,581.44 × 16,708.96
  4. Step 4: Simplify right side
    30,856.16x = 711,491,577.70
  5. Step 5: Solve for x
    x = 711,491,577.70/30,856.16
  6. Step 6: Final answer
    x = 23,058.33

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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.