Home / 28,258.84-42,392.94-9,540.64

Finding the Fourth Proportional to 28,258.84, 42,392.94 and 9,540.64

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Solution

The fourth proportional to 28,258.84, 42,392.94 and 9,540.64 is: 14,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258.84 : 42,392.94 = 9,540.64 : x
  2. Step 2: Convert to fraction form
    28,258.84/42,392.94 = 9,540.64/x
  3. Step 3: Cross multiply
    28,258.84x = 42,392.94 × 9,540.64
  4. Step 4: Simplify right side
    28,258.84x = 404,455,779.08
  5. Step 5: Solve for x
    x = 404,455,779.08/28,258.84
  6. Step 6: Final answer
    x = 14,312.54

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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.