Home / 20,468.37-30,683.39-18,642.36

Finding the Fourth Proportional to 20,468.37, 30,683.39 and 18,642.36

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Solution

The fourth proportional to 20,468.37, 30,683.39 and 18,642.36 is: 27,946.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.37 : 30,683.39 = 18,642.36 : x
  2. Step 2: Convert to fraction form
    20,468.37/30,683.39 = 18,642.36/x
  3. Step 3: Cross multiply
    20,468.37x = 30,683.39 × 18,642.36
  4. Step 4: Simplify right side
    20,468.37x = 572,010,709.19
  5. Step 5: Solve for x
    x = 572,010,709.19/20,468.37
  6. Step 6: Final answer
    x = 27,946.08

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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.