Home / 28,560.22-42,850.46-12,763.80

Finding the Fourth Proportional to 28,560.22, 42,850.46 and 12,763.80

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Solution

The fourth proportional to 28,560.22, 42,850.46 and 12,763.80 is: 19,150.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560.22 : 42,850.46 = 12,763.80 : x
  2. Step 2: Convert to fraction form
    28,560.22/42,850.46 = 12,763.80/x
  3. Step 3: Cross multiply
    28,560.22x = 42,850.46 × 12,763.80
  4. Step 4: Simplify right side
    28,560.22x = 546,934,701.35
  5. Step 5: Solve for x
    x = 546,934,701.35/28,560.22
  6. Step 6: Final answer
    x = 19,150.23

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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.