Home / 28,566.03-42,857.79-12,784.34

Finding the Fourth Proportional to 28,566.03, 42,857.79 and 12,784.34

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Solution

The fourth proportional to 28,566.03, 42,857.79 and 12,784.34 is: 19,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.03 : 42,857.79 = 12,784.34 : x
  2. Step 2: Convert to fraction form
    28,566.03/42,857.79 = 12,784.34/x
  3. Step 3: Cross multiply
    28,566.03x = 42,857.79 × 12,784.34
  4. Step 4: Simplify right side
    28,566.03x = 547,908,559.01
  5. Step 5: Solve for x
    x = 547,908,559.01/28,566.03
  6. Step 6: Final answer
    x = 19,180.42

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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.