Home / 28,148.27-42,224.31-9,427.55

Finding the Fourth Proportional to 28,148.27, 42,224.31 and 9,427.55

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Solution

The fourth proportional to 28,148.27, 42,224.31 and 9,427.55 is: 14,141.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.27 : 42,224.31 = 9,427.55 : x
  2. Step 2: Convert to fraction form
    28,148.27/42,224.31 = 9,427.55/x
  3. Step 3: Cross multiply
    28,148.27x = 42,224.31 × 9,427.55
  4. Step 4: Simplify right side
    28,148.27x = 398,071,582.62
  5. Step 5: Solve for x
    x = 398,071,582.62/28,148.27
  6. Step 6: Final answer
    x = 14,141.96

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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.