Home / 28,652.90-42,977.37-8,929.58

Finding the Fourth Proportional to 28,652.90, 42,977.37 and 8,929.58

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Solution

The fourth proportional to 28,652.90, 42,977.37 and 8,929.58 is: 13,393.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.90 : 42,977.37 = 8,929.58 : x
  2. Step 2: Convert to fraction form
    28,652.90/42,977.37 = 8,929.58/x
  3. Step 3: Cross multiply
    28,652.90x = 42,977.37 × 8,929.58
  4. Step 4: Simplify right side
    28,652.90x = 383,769,863.60
  5. Step 5: Solve for x
    x = 383,769,863.60/28,652.90
  6. Step 6: Final answer
    x = 13,393.75

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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.