Home / 28,010.32-42,023.72-8,289.40

Finding the Fourth Proportional to 28,010.32, 42,023.72 and 8,289.40

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Solution

The fourth proportional to 28,010.32, 42,023.72 and 8,289.40 is: 12,436.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.32 : 42,023.72 = 8,289.40 : x
  2. Step 2: Convert to fraction form
    28,010.32/42,023.72 = 8,289.40/x
  3. Step 3: Cross multiply
    28,010.32x = 42,023.72 × 8,289.40
  4. Step 4: Simplify right side
    28,010.32x = 348,351,424.57
  5. Step 5: Solve for x
    x = 348,351,424.57/28,010.32
  6. Step 6: Final answer
    x = 12,436.54

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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.