Home / 28,076.48-42,107.40-8,349.74

Finding the Fourth Proportional to 28,076.48, 42,107.40 and 8,349.74

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Solution

The fourth proportional to 28,076.48, 42,107.40 and 8,349.74 is: 12,522.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.48 : 42,107.40 = 8,349.74 : x
  2. Step 2: Convert to fraction form
    28,076.48/42,107.40 = 8,349.74/x
  3. Step 3: Cross multiply
    28,076.48x = 42,107.40 × 8,349.74
  4. Step 4: Simplify right side
    28,076.48x = 351,585,842.08
  5. Step 5: Solve for x
    x = 351,585,842.08/28,076.48
  6. Step 6: Final answer
    x = 12,522.43

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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.