Home / 28,319.88-42,486.54-8,599.56

Finding the Fourth Proportional to 28,319.88, 42,486.54 and 8,599.56

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Solution

The fourth proportional to 28,319.88, 42,486.54 and 8,599.56 is: 12,901.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.88 : 42,486.54 = 8,599.56 : x
  2. Step 2: Convert to fraction form
    28,319.88/42,486.54 = 8,599.56/x
  3. Step 3: Cross multiply
    28,319.88x = 42,486.54 × 8,599.56
  4. Step 4: Simplify right side
    28,319.88x = 365,365,549.92
  5. Step 5: Solve for x
    x = 365,365,549.92/28,319.88
  6. Step 6: Final answer
    x = 12,901.38

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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.