Home / 28,333.40-42,501.62-8,612.60

Finding the Fourth Proportional to 28,333.40, 42,501.62 and 8,612.60

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Solution

The fourth proportional to 28,333.40, 42,501.62 and 8,612.60 is: 12,919.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,333.40 : 42,501.62 = 8,612.60 : x
  2. Step 2: Convert to fraction form
    28,333.40/42,501.62 = 8,612.60/x
  3. Step 3: Cross multiply
    28,333.40x = 42,501.62 × 8,612.60
  4. Step 4: Simplify right side
    28,333.40x = 366,049,452.41
  5. Step 5: Solve for x
    x = 366,049,452.41/28,333.40
  6. Step 6: Final answer
    x = 12,919.36

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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.