Home / 28,958.60-43,458.64-12,330.30

Finding the Fourth Proportional to 28,958.60, 43,458.64 and 12,330.30

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Solution

The fourth proportional to 28,958.60, 43,458.64 and 12,330.30 is: 18,504.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,958.60 : 43,458.64 = 12,330.30 : x
  2. Step 2: Convert to fraction form
    28,958.60/43,458.64 = 12,330.30/x
  3. Step 3: Cross multiply
    28,958.60x = 43,458.64 × 12,330.30
  4. Step 4: Simplify right side
    28,958.60x = 535,858,068.79
  5. Step 5: Solve for x
    x = 535,858,068.79/28,958.60
  6. Step 6: Final answer
    x = 18,504.28

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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.