Home / 19,917.74-29,881.74-5,877.20

Finding the Fourth Proportional to 19,917.74, 29,881.74 and 5,877.20

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Solution

The fourth proportional to 19,917.74, 29,881.74 and 5,877.20 is: 8,817.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.74 : 29,881.74 = 5,877.20 : x
  2. Step 2: Convert to fraction form
    19,917.74/29,881.74 = 5,877.20/x
  3. Step 3: Cross multiply
    19,917.74x = 29,881.74 × 5,877.20
  4. Step 4: Simplify right side
    19,917.74x = 175,620,812.92
  5. Step 5: Solve for x
    x = 175,620,812.92/19,917.74
  6. Step 6: Final answer
    x = 8,817.31

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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.