Home / 19,039.32-28,571.33-8,515.80

Finding the Fourth Proportional to 19,039.32, 28,571.33 and 8,515.80

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Solution

The fourth proportional to 19,039.32, 28,571.33 and 8,515.80 is: 12,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.32 : 28,571.33 = 8,515.80 : x
  2. Step 2: Convert to fraction form
    19,039.32/28,571.33 = 8,515.80/x
  3. Step 3: Cross multiply
    19,039.32x = 28,571.33 × 8,515.80
  4. Step 4: Simplify right side
    19,039.32x = 243,307,753.30
  5. Step 5: Solve for x
    x = 243,307,753.30/19,039.32
  6. Step 6: Final answer
    x = 12,779.22

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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.