Home / 20,577.14-30,866.90-5,787.22

Finding the Fourth Proportional to 20,577.14, 30,866.90 and 5,787.22

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Solution

The fourth proportional to 20,577.14, 30,866.90 and 5,787.22 is: 8,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.14 : 30,866.90 = 5,787.22 : x
  2. Step 2: Convert to fraction form
    20,577.14/30,866.90 = 5,787.22/x
  3. Step 3: Cross multiply
    20,577.14x = 30,866.90 × 5,787.22
  4. Step 4: Simplify right side
    20,577.14x = 178,633,541.02
  5. Step 5: Solve for x
    x = 178,633,541.02/20,577.14
  6. Step 6: Final answer
    x = 8,681.16

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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.