Home / 33,065.12-45,631.45-20,318.84

Finding the Fourth Proportional to 33,065.12, 45,631.45 and 20,318.84

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Solution

The fourth proportional to 33,065.12, 45,631.45 and 20,318.84 is: 28,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,065.12 : 45,631.45 = 20,318.84 : x
  2. Step 2: Convert to fraction form
    33,065.12/45,631.45 = 20,318.84/x
  3. Step 3: Cross multiply
    33,065.12x = 45,631.45 × 20,318.84
  4. Step 4: Simplify right side
    33,065.12x = 927,178,035.71
  5. Step 5: Solve for x
    x = 927,178,035.71/33,065.12
  6. Step 6: Final answer
    x = 28,040.97

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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.