Home / 35,985.73-49,659.60-20,879.77

Finding the Fourth Proportional to 35,985.73, 49,659.60 and 20,879.77

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Solution

The fourth proportional to 35,985.73, 49,659.60 and 20,879.77 is: 28,813.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,985.73 : 49,659.60 = 20,879.77 : x
  2. Step 2: Convert to fraction form
    35,985.73/49,659.60 = 20,879.77/x
  3. Step 3: Cross multiply
    35,985.73x = 49,659.60 × 20,879.77
  4. Step 4: Simplify right side
    35,985.73x = 1,036,881,026.29
  5. Step 5: Solve for x
    x = 1,036,881,026.29/35,985.73
  6. Step 6: Final answer
    x = 28,813.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.