Home / 28,360.09-42,540.20-7,583.59

Finding the Fourth Proportional to 28,360.09, 42,540.20 and 7,583.59

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Solution

The fourth proportional to 28,360.09, 42,540.20 and 7,583.59 is: 11,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.09 : 42,540.20 = 7,583.59 : x
  2. Step 2: Convert to fraction form
    28,360.09/42,540.20 = 7,583.59/x
  3. Step 3: Cross multiply
    28,360.09x = 42,540.20 × 7,583.59
  4. Step 4: Simplify right side
    28,360.09x = 322,607,435.32
  5. Step 5: Solve for x
    x = 322,607,435.32/28,360.09
  6. Step 6: Final answer
    x = 11,375.40

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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.