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Finding the Fourth Proportional to 28,014.60, 41,988.60 and 14,860.20

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Solution

The fourth proportional to 28,014.60, 41,988.60 and 14,860.20 is: 22,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.60 : 41,988.60 = 14,860.20 : x
  2. Step 2: Convert to fraction form
    28,014.60/41,988.60 = 14,860.20/x
  3. Step 3: Cross multiply
    28,014.60x = 41,988.60 × 14,860.20
  4. Step 4: Simplify right side
    28,014.60x = 623,958,993.72
  5. Step 5: Solve for x
    x = 623,958,993.72/28,014.60
  6. Step 6: Final answer
    x = 22,272.64

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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.