Home / 19,039.43-28,564.98-8,518.30

Finding the Fourth Proportional to 19,039.43, 28,564.98 and 8,518.30

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Solution

The fourth proportional to 19,039.43, 28,564.98 and 8,518.30 is: 12,780.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,039.43 : 28,564.98 = 8,518.30 : x
  2. Step 2: Convert to fraction form
    19,039.43/28,564.98 = 8,518.30/x
  3. Step 3: Cross multiply
    19,039.43x = 28,564.98 × 8,518.30
  4. Step 4: Simplify right side
    19,039.43x = 243,325,026.54
  5. Step 5: Solve for x
    x = 243,325,026.54/19,039.43
  6. Step 6: Final answer
    x = 12,780.06

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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.