Home / 20,295.36-30,448.80-6,445.44

Finding the Fourth Proportional to 20,295.36, 30,448.80 and 6,445.44

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Solution

The fourth proportional to 20,295.36, 30,448.80 and 6,445.44 is: 9,669.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.36 : 30,448.80 = 6,445.44 : x
  2. Step 2: Convert to fraction form
    20,295.36/30,448.80 = 6,445.44/x
  3. Step 3: Cross multiply
    20,295.36x = 30,448.80 × 6,445.44
  4. Step 4: Simplify right side
    20,295.36x = 196,255,913.47
  5. Step 5: Solve for x
    x = 196,255,913.47/20,295.36
  6. Step 6: Final answer
    x = 9,669.99

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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.