Home / 20,877.69-31,316.67-5,295.33

Finding the Fourth Proportional to 20,877.69, 31,316.67 and 5,295.33

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Solution

The fourth proportional to 20,877.69, 31,316.67 and 5,295.33 is: 7,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.69 : 31,316.67 = 5,295.33 : x
  2. Step 2: Convert to fraction form
    20,877.69/31,316.67 = 5,295.33/x
  3. Step 3: Cross multiply
    20,877.69x = 31,316.67 × 5,295.33
  4. Step 4: Simplify right side
    20,877.69x = 165,832,102.15
  5. Step 5: Solve for x
    x = 165,832,102.15/20,877.69
  6. Step 6: Final answer
    x = 7,943.03

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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.