Home / 28,334.05-42,498.37-8,612.77

Finding the Fourth Proportional to 28,334.05, 42,498.37 and 8,612.77

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Solution

The fourth proportional to 28,334.05, 42,498.37 and 8,612.77 is: 12,918.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.05 : 42,498.37 = 8,612.77 : x
  2. Step 2: Convert to fraction form
    28,334.05/42,498.37 = 8,612.77/x
  3. Step 3: Cross multiply
    28,334.05x = 42,498.37 × 8,612.77
  4. Step 4: Simplify right side
    28,334.05x = 366,028,686.18
  5. Step 5: Solve for x
    x = 366,028,686.18/28,334.05
  6. Step 6: Final answer
    x = 12,918.33

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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.