Home / 19,323.09-28,970.06-8,220.42

Finding the Fourth Proportional to 19,323.09, 28,970.06 and 8,220.42

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Solution

The fourth proportional to 19,323.09, 28,970.06 and 8,220.42 is: 12,324.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,323.09 : 28,970.06 = 8,220.42 : x
  2. Step 2: Convert to fraction form
    19,323.09/28,970.06 = 8,220.42/x
  3. Step 3: Cross multiply
    19,323.09x = 28,970.06 × 8,220.42
  4. Step 4: Simplify right side
    19,323.09x = 238,146,019.52
  5. Step 5: Solve for x
    x = 238,146,019.52/19,323.09
  6. Step 6: Final answer
    x = 12,324.43

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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.