Home / 20,656.36-30,988.94-5,869.80

Finding the Fourth Proportional to 20,656.36, 30,988.94 and 5,869.80

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Solution

The fourth proportional to 20,656.36, 30,988.94 and 5,869.80 is: 8,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.36 : 30,988.94 = 5,869.80 : x
  2. Step 2: Convert to fraction form
    20,656.36/30,988.94 = 5,869.80/x
  3. Step 3: Cross multiply
    20,656.36x = 30,988.94 × 5,869.80
  4. Step 4: Simplify right side
    20,656.36x = 181,898,880.01
  5. Step 5: Solve for x
    x = 181,898,880.01/20,656.36
  6. Step 6: Final answer
    x = 8,805.95

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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.