Home / 28,347.08-42,512.99-8,620.34

Finding the Fourth Proportional to 28,347.08, 42,512.99 and 8,620.34

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Solution

The fourth proportional to 28,347.08, 42,512.99 and 8,620.34 is: 12,928.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.08 : 42,512.99 = 8,620.34 : x
  2. Step 2: Convert to fraction form
    28,347.08/42,512.99 = 8,620.34/x
  3. Step 3: Cross multiply
    28,347.08x = 42,512.99 × 8,620.34
  4. Step 4: Simplify right side
    28,347.08x = 366,476,172.55
  5. Step 5: Solve for x
    x = 366,476,172.55/28,347.08
  6. Step 6: Final answer
    x = 12,928.18

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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.