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Finding the Fourth Proportional to 20,582.24, 30,866.04 and 8,889.08

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Solution

The fourth proportional to 20,582.24, 30,866.04 and 8,889.08 is: 13,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.24 : 30,866.04 = 8,889.08 : x
  2. Step 2: Convert to fraction form
    20,582.24/30,866.04 = 8,889.08/x
  3. Step 3: Cross multiply
    20,582.24x = 30,866.04 × 8,889.08
  4. Step 4: Simplify right side
    20,582.24x = 274,370,544.51
  5. Step 5: Solve for x
    x = 274,370,544.51/20,582.24
  6. Step 6: Final answer
    x = 13,330.45

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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.