Home / 28,289.22-42,433.83-7,512.72

Finding the Fourth Proportional to 28,289.22, 42,433.83 and 7,512.72

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Solution

The fourth proportional to 28,289.22, 42,433.83 and 7,512.72 is: 11,269.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.22 : 42,433.83 = 7,512.72 : x
  2. Step 2: Convert to fraction form
    28,289.22/42,433.83 = 7,512.72/x
  3. Step 3: Cross multiply
    28,289.22x = 42,433.83 × 7,512.72
  4. Step 4: Simplify right side
    28,289.22x = 318,793,483.32
  5. Step 5: Solve for x
    x = 318,793,483.32/28,289.22
  6. Step 6: Final answer
    x = 11,269.08

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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.