Home / 20,734.34-31,076.58-7,579.58

Finding the Fourth Proportional to 20,734.34, 31,076.58 and 7,579.58

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Solution

The fourth proportional to 20,734.34, 31,076.58 and 7,579.58 is: 11,360.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.34 : 31,076.58 = 7,579.58 : x
  2. Step 2: Convert to fraction form
    20,734.34/31,076.58 = 7,579.58/x
  3. Step 3: Cross multiply
    20,734.34x = 31,076.58 × 7,579.58
  4. Step 4: Simplify right side
    20,734.34x = 235,547,424.24
  5. Step 5: Solve for x
    x = 235,547,424.24/20,734.34
  6. Step 6: Final answer
    x = 11,360.26

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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.