Home / 19,982.73-29,973.38-4,989.93

Finding the Fourth Proportional to 19,982.73, 29,973.38 and 4,989.93

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Solution

The fourth proportional to 19,982.73, 29,973.38 and 4,989.93 is: 7,484.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.73 : 29,973.38 = 4,989.93 : x
  2. Step 2: Convert to fraction form
    19,982.73/29,973.38 = 4,989.93/x
  3. Step 3: Cross multiply
    19,982.73x = 29,973.38 × 4,989.93
  4. Step 4: Simplify right side
    19,982.73x = 149,565,068.06
  5. Step 5: Solve for x
    x = 149,565,068.06/19,982.73
  6. Step 6: Final answer
    x = 7,484.72

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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.