Home / 30,406.84-45,624.70-21,061.24

Finding the Fourth Proportional to 30,406.84, 45,624.70 and 21,061.24

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Solution

The fourth proportional to 30,406.84, 45,624.70 and 21,061.24 is: 31,601.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406.84 : 45,624.70 = 21,061.24 : x
  2. Step 2: Convert to fraction form
    30,406.84/45,624.70 = 21,061.24/x
  3. Step 3: Cross multiply
    30,406.84x = 45,624.70 × 21,061.24
  4. Step 4: Simplify right side
    30,406.84x = 960,912,756.63
  5. Step 5: Solve for x
    x = 960,912,756.63/30,406.84
  6. Step 6: Final answer
    x = 31,601.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.