Home / 30,376.40-45,564.60-19,222.70

Finding the Fourth Proportional to 30,376.40, 45,564.60 and 19,222.70

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Solution

The fourth proportional to 30,376.40, 45,564.60 and 19,222.70 is: 28,834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.40 : 45,564.60 = 19,222.70 : x
  2. Step 2: Convert to fraction form
    30,376.40/45,564.60 = 19,222.70/x
  3. Step 3: Cross multiply
    30,376.40x = 45,564.60 × 19,222.70
  4. Step 4: Simplify right side
    30,376.40x = 875,874,636.42
  5. Step 5: Solve for x
    x = 875,874,636.42/30,376.40
  6. Step 6: Final answer
    x = 28,834.05

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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.