Home / 30,901.56-42,628.38-19,551.96

Finding the Fourth Proportional to 30,901.56, 42,628.38 and 19,551.96

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Solution

The fourth proportional to 30,901.56, 42,628.38 and 19,551.96 is: 26,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,901.56 : 42,628.38 = 19,551.96 : x
  2. Step 2: Convert to fraction form
    30,901.56/42,628.38 = 19,551.96/x
  3. Step 3: Cross multiply
    30,901.56x = 42,628.38 × 19,551.96
  4. Step 4: Simplify right side
    30,901.56x = 833,468,380.62
  5. Step 5: Solve for x
    x = 833,468,380.62/30,901.56
  6. Step 6: Final answer
    x = 26,971.73

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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.