Home / 20,214.86-30,323.91-5,424.26

Finding the Fourth Proportional to 20,214.86, 30,323.91 and 5,424.26

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Solution

The fourth proportional to 20,214.86, 30,323.91 and 5,424.26 is: 8,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,214.86 : 30,323.91 = 5,424.26 : x
  2. Step 2: Convert to fraction form
    20,214.86/30,323.91 = 5,424.26/x
  3. Step 3: Cross multiply
    20,214.86x = 30,323.91 × 5,424.26
  4. Step 4: Simplify right side
    20,214.86x = 164,484,772.06
  5. Step 5: Solve for x
    x = 164,484,772.06/20,214.86
  6. Step 6: Final answer
    x = 8,136.82

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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.