Home / 20,386.65-30,578.82-5,594.49

Finding the Fourth Proportional to 20,386.65, 30,578.82 and 5,594.49

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Solution

The fourth proportional to 20,386.65, 30,578.82 and 5,594.49 is: 8,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386.65 : 30,578.82 = 5,594.49 : x
  2. Step 2: Convert to fraction form
    20,386.65/30,578.82 = 5,594.49/x
  3. Step 3: Cross multiply
    20,386.65x = 30,578.82 × 5,594.49
  4. Step 4: Simplify right side
    20,386.65x = 171,072,902.70
  5. Step 5: Solve for x
    x = 171,072,902.70/20,386.65
  6. Step 6: Final answer
    x = 8,391.42

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1.5x scale

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.