Home / 28,533.79-42,815.60-11,679.31

Finding the Fourth Proportional to 28,533.79, 42,815.60 and 11,679.31

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Solution

The fourth proportional to 28,533.79, 42,815.60 and 11,679.31 is: 17,525.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,533.79 : 42,815.60 = 11,679.31 : x
  2. Step 2: Convert to fraction form
    28,533.79/42,815.60 = 11,679.31/x
  3. Step 3: Cross multiply
    28,533.79x = 42,815.60 × 11,679.31
  4. Step 4: Simplify right side
    28,533.79x = 500,056,665.24
  5. Step 5: Solve for x
    x = 500,056,665.24/28,533.79
  6. Step 6: Final answer
    x = 17,525.07

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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.