Home / 20,219.24-30,342.76-7,071.64

Finding the Fourth Proportional to 20,219.24, 30,342.76 and 7,071.64

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Solution

The fourth proportional to 20,219.24, 30,342.76 and 7,071.64 is: 10,612.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.24 : 30,342.76 = 7,071.64 : x
  2. Step 2: Convert to fraction form
    20,219.24/30,342.76 = 7,071.64/x
  3. Step 3: Cross multiply
    20,219.24x = 30,342.76 × 7,071.64
  4. Step 4: Simplify right side
    20,219.24x = 214,573,075.33
  5. Step 5: Solve for x
    x = 214,573,075.33/20,219.24
  6. Step 6: Final answer
    x = 10,612.32

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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.