Home / 28,986.60-43,496.10-12,343.80

Finding the Fourth Proportional to 28,986.60, 43,496.10 and 12,343.80

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Solution

The fourth proportional to 28,986.60, 43,496.10 and 12,343.80 is: 18,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.60 : 43,496.10 = 12,343.80 : x
  2. Step 2: Convert to fraction form
    28,986.60/43,496.10 = 12,343.80/x
  3. Step 3: Cross multiply
    28,986.60x = 43,496.10 × 12,343.80
  4. Step 4: Simplify right side
    28,986.60x = 536,907,159.18
  5. Step 5: Solve for x
    x = 536,907,159.18/28,986.60
  6. Step 6: Final answer
    x = 18,522.60

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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.