Home / 21,813.74-32,724.44-11,280.89

Finding the Fourth Proportional to 21,813.74, 32,724.44 and 11,280.89

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Solution

The fourth proportional to 21,813.74, 32,724.44 and 11,280.89 is: 16,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,813.74 : 32,724.44 = 11,280.89 : x
  2. Step 2: Convert to fraction form
    21,813.74/32,724.44 = 11,280.89/x
  3. Step 3: Cross multiply
    21,813.74x = 32,724.44 × 11,280.89
  4. Step 4: Simplify right side
    21,813.74x = 369,160,587.92
  5. Step 5: Solve for x
    x = 369,160,587.92/21,813.74
  6. Step 6: Final answer
    x = 16,923.31

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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.