Home / 28,370.12-42,553.62-8,647.02

Finding the Fourth Proportional to 28,370.12, 42,553.62 and 8,647.02

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Solution

The fourth proportional to 28,370.12, 42,553.62 and 8,647.02 is: 12,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.12 : 42,553.62 = 8,647.02 : x
  2. Step 2: Convert to fraction form
    28,370.12/42,553.62 = 8,647.02/x
  3. Step 3: Cross multiply
    28,370.12x = 42,553.62 × 8,647.02
  4. Step 4: Simplify right side
    28,370.12x = 367,962,003.21
  5. Step 5: Solve for x
    x = 367,962,003.21/28,370.12
  6. Step 6: Final answer
    x = 12,970.06

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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.