Home / 20,566.12-30,668.57-20,379.01

Finding the Fourth Proportional to 20,566.12, 30,668.57 and 20,379.01

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Solution

The fourth proportional to 20,566.12, 30,668.57 and 20,379.01 is: 30,389.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.12 : 30,668.57 = 20,379.01 : x
  2. Step 2: Convert to fraction form
    20,566.12/30,668.57 = 20,379.01/x
  3. Step 3: Cross multiply
    20,566.12x = 30,668.57 × 20,379.01
  4. Step 4: Simplify right side
    20,566.12x = 624,995,094.72
  5. Step 5: Solve for x
    x = 624,995,094.72/20,566.12
  6. Step 6: Final answer
    x = 30,389.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.