Home / 28,944.72-43,428.60-12,308.40

Finding the Fourth Proportional to 28,944.72, 43,428.60 and 12,308.40

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Solution

The fourth proportional to 28,944.72, 43,428.60 and 12,308.40 is: 18,467.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,944.72 : 43,428.60 = 12,308.40 : x
  2. Step 2: Convert to fraction form
    28,944.72/43,428.60 = 12,308.40/x
  3. Step 3: Cross multiply
    28,944.72x = 43,428.60 × 12,308.40
  4. Step 4: Simplify right side
    28,944.72x = 534,536,580.24
  5. Step 5: Solve for x
    x = 534,536,580.24/28,944.72
  6. Step 6: Final answer
    x = 18,467.50

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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.