Home / 21,582.64-29,784.62-12,151.56

Finding the Fourth Proportional to 21,582.64, 29,784.62 and 12,151.56

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Solution

The fourth proportional to 21,582.64, 29,784.62 and 12,151.56 is: 16,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.64 : 29,784.62 = 12,151.56 : x
  2. Step 2: Convert to fraction form
    21,582.64/29,784.62 = 12,151.56/x
  3. Step 3: Cross multiply
    21,582.64x = 29,784.62 × 12,151.56
  4. Step 4: Simplify right side
    21,582.64x = 361,929,597.01
  5. Step 5: Solve for x
    x = 361,929,597.01/21,582.64
  6. Step 6: Final answer
    x = 16,769.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.