Home / 28,518.30-42,782.30-8,793.18

Finding the Fourth Proportional to 28,518.30, 42,782.30 and 8,793.18

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Solution

The fourth proportional to 28,518.30, 42,782.30 and 8,793.18 is: 13,191.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.30 : 42,782.30 = 8,793.18 : x
  2. Step 2: Convert to fraction form
    28,518.30/42,782.30 = 8,793.18/x
  3. Step 3: Cross multiply
    28,518.30x = 42,782.30 × 8,793.18
  4. Step 4: Simplify right side
    28,518.30x = 376,192,464.71
  5. Step 5: Solve for x
    x = 376,192,464.71/28,518.30
  6. Step 6: Final answer
    x = 13,191.27

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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.