Home / 21,582.20-32,364.79-10,485.61

Finding the Fourth Proportional to 21,582.20, 32,364.79 and 10,485.61

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Solution

The fourth proportional to 21,582.20, 32,364.79 and 10,485.61 is: 15,724.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.20 : 32,364.79 = 10,485.61 : x
  2. Step 2: Convert to fraction form
    21,582.20/32,364.79 = 10,485.61/x
  3. Step 3: Cross multiply
    21,582.20x = 32,364.79 × 10,485.61
  4. Step 4: Simplify right side
    21,582.20x = 339,364,458.55
  5. Step 5: Solve for x
    x = 339,364,458.55/21,582.20
  6. Step 6: Final answer
    x = 15,724.27

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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.