Home / 30,234.56-41,720.64-18,901.76

Finding the Fourth Proportional to 30,234.56, 41,720.64 and 18,901.76

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Solution

The fourth proportional to 30,234.56, 41,720.64 and 18,901.76 is: 26,082.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,234.56 : 41,720.64 = 18,901.76 : x
  2. Step 2: Convert to fraction form
    30,234.56/41,720.64 = 18,901.76/x
  3. Step 3: Cross multiply
    30,234.56x = 41,720.64 × 18,901.76
  4. Step 4: Simplify right side
    30,234.56x = 788,593,524.33
  5. Step 5: Solve for x
    x = 788,593,524.33/30,234.56
  6. Step 6: Final answer
    x = 26,082.52

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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.