Home / 19,580.64-29,370.83-4,789.77

Finding the Fourth Proportional to 19,580.64, 29,370.83 and 4,789.77

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Solution

The fourth proportional to 19,580.64, 29,370.83 and 4,789.77 is: 7,184.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,580.64 : 29,370.83 = 4,789.77 : x
  2. Step 2: Convert to fraction form
    19,580.64/29,370.83 = 4,789.77/x
  3. Step 3: Cross multiply
    19,580.64x = 29,370.83 × 4,789.77
  4. Step 4: Simplify right side
    19,580.64x = 140,679,496.46
  5. Step 5: Solve for x
    x = 140,679,496.46/19,580.64
  6. Step 6: Final answer
    x = 7,184.62

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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.