Home / 28,869.40-43,271.70-12,226.60

Finding the Fourth Proportional to 28,869.40, 43,271.70 and 12,226.60

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Solution

The fourth proportional to 28,869.40, 43,271.70 and 12,226.60 is: 18,326.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869.40 : 43,271.70 = 12,226.60 : x
  2. Step 2: Convert to fraction form
    28,869.40/43,271.70 = 12,226.60/x
  3. Step 3: Cross multiply
    28,869.40x = 43,271.70 × 12,226.60
  4. Step 4: Simplify right side
    28,869.40x = 529,065,767.22
  5. Step 5: Solve for x
    x = 529,065,767.22/28,869.40
  6. Step 6: Final answer
    x = 18,326.18

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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.