Home / 19,900.60-29,840.62-5,858.80

Finding the Fourth Proportional to 19,900.60, 29,840.62 and 5,858.80

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Solution

The fourth proportional to 19,900.60, 29,840.62 and 5,858.80 is: 8,785.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.60 : 29,840.62 = 5,858.80 : x
  2. Step 2: Convert to fraction form
    19,900.60/29,840.62 = 5,858.80/x
  3. Step 3: Cross multiply
    19,900.60x = 29,840.62 × 5,858.80
  4. Step 4: Simplify right side
    19,900.60x = 174,830,224.46
  5. Step 5: Solve for x
    x = 174,830,224.46/19,900.60
  6. Step 6: Final answer
    x = 8,785.17

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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.