Home / 26,579.60-39,821.40-15,477.20

Finding the Fourth Proportional to 26,579.60, 39,821.40 and 15,477.20

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Solution

The fourth proportional to 26,579.60, 39,821.40 and 15,477.20 is: 23,187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,579.60 : 39,821.40 = 15,477.20 : x
  2. Step 2: Convert to fraction form
    26,579.60/39,821.40 = 15,477.20/x
  3. Step 3: Cross multiply
    26,579.60x = 39,821.40 × 15,477.20
  4. Step 4: Simplify right side
    26,579.60x = 616,323,772.08
  5. Step 5: Solve for x
    x = 616,323,772.08/26,579.60
  6. Step 6: Final answer
    x = 23,187.85

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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.