Home / 20,625.02-28,474.74-13,563.62

Finding the Fourth Proportional to 20,625.02, 28,474.74 and 13,563.62

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Solution

The fourth proportional to 20,625.02, 28,474.74 and 13,563.62 is: 18,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.02 : 28,474.74 = 13,563.62 : x
  2. Step 2: Convert to fraction form
    20,625.02/28,474.74 = 13,563.62/x
  3. Step 3: Cross multiply
    20,625.02x = 28,474.74 × 13,563.62
  4. Step 4: Simplify right side
    20,625.02x = 386,220,552.96
  5. Step 5: Solve for x
    x = 386,220,552.96/20,625.02
  6. Step 6: Final answer
    x = 18,725.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.