Home / 28,920.79-43,365.06-8,924.60

Finding the Fourth Proportional to 28,920.79, 43,365.06 and 8,924.60

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Solution

The fourth proportional to 28,920.79, 43,365.06 and 8,924.60 is: 13,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920.79 : 43,365.06 = 8,924.60 : x
  2. Step 2: Convert to fraction form
    28,920.79/43,365.06 = 8,924.60/x
  3. Step 3: Cross multiply
    28,920.79x = 43,365.06 × 8,924.60
  4. Step 4: Simplify right side
    28,920.79x = 387,015,922.89
  5. Step 5: Solve for x
    x = 387,015,922.89/28,920.79
  6. Step 6: Final answer
    x = 13,381.93

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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.