Home / 43,384.40-65,063.83-19,678.23

Finding the Fourth Proportional to 43,384.40, 65,063.83 and 19,678.23

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Solution

The fourth proportional to 43,384.40, 65,063.83 and 19,678.23 is: 29,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,384.40 : 65,063.83 = 19,678.23 : x
  2. Step 2: Convert to fraction form
    43,384.40/65,063.83 = 19,678.23/x
  3. Step 3: Cross multiply
    43,384.40x = 65,063.83 × 19,678.23
  4. Step 4: Simplify right side
    43,384.40x = 1,280,340,877.13
  5. Step 5: Solve for x
    x = 1,280,340,877.13/43,384.40
  6. Step 6: Final answer
    x = 29,511.55

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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.