Home / 19,630.71-27,099.23-12,919.86

Finding the Fourth Proportional to 19,630.71, 27,099.23 and 12,919.86

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Solution

The fourth proportional to 19,630.71, 27,099.23 and 12,919.86 is: 17,835.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.71 : 27,099.23 = 12,919.86 : x
  2. Step 2: Convert to fraction form
    19,630.71/27,099.23 = 12,919.86/x
  3. Step 3: Cross multiply
    19,630.71x = 27,099.23 × 12,919.86
  4. Step 4: Simplify right side
    19,630.71x = 350,118,193.11
  5. Step 5: Solve for x
    x = 350,118,193.11/19,630.71
  6. Step 6: Final answer
    x = 17,835.23

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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.