Home / 20,211.93-30,331.77-7,064.31

Finding the Fourth Proportional to 20,211.93, 30,331.77 and 7,064.31

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Solution

The fourth proportional to 20,211.93, 30,331.77 and 7,064.31 is: 10,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.93 : 30,331.77 = 7,064.31 : x
  2. Step 2: Convert to fraction form
    20,211.93/30,331.77 = 7,064.31/x
  3. Step 3: Cross multiply
    20,211.93x = 30,331.77 × 7,064.31
  4. Step 4: Simplify right side
    20,211.93x = 214,273,113.38
  5. Step 5: Solve for x
    x = 214,273,113.38/20,211.93
  6. Step 6: Final answer
    x = 10,601.32

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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.