Home / 19,582.68-27,029.80-11,928.72

Finding the Fourth Proportional to 19,582.68, 27,029.80 and 11,928.72

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Solution

The fourth proportional to 19,582.68, 27,029.80 and 11,928.72 is: 16,465.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,582.68 : 27,029.80 = 11,928.72 : x
  2. Step 2: Convert to fraction form
    19,582.68/27,029.80 = 11,928.72/x
  3. Step 3: Cross multiply
    19,582.68x = 27,029.80 × 11,928.72
  4. Step 4: Simplify right side
    19,582.68x = 322,430,915.86
  5. Step 5: Solve for x
    x = 322,430,915.86/19,582.68
  6. Step 6: Final answer
    x = 16,465.11

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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.