Home / 28,366.20-42,549.44-8,645.00

Finding the Fourth Proportional to 28,366.20, 42,549.44 and 8,645.00

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Solution

The fourth proportional to 28,366.20, 42,549.44 and 8,645.00 is: 12,967.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.20 : 42,549.44 = 8,645.00 : x
  2. Step 2: Convert to fraction form
    28,366.20/42,549.44 = 8,645.00/x
  3. Step 3: Cross multiply
    28,366.20x = 42,549.44 × 8,645.00
  4. Step 4: Simplify right side
    28,366.20x = 367,839,652.83
  5. Step 5: Solve for x
    x = 367,839,652.83/28,366.20
  6. Step 6: Final answer
    x = 12,967.53

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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.