Home / 19,917.36-29,875.05-7,436.43

Finding the Fourth Proportional to 19,917.36, 29,875.05 and 7,436.43

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Solution

The fourth proportional to 19,917.36, 29,875.05 and 7,436.43 is: 11,154.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.36 : 29,875.05 = 7,436.43 : x
  2. Step 2: Convert to fraction form
    19,917.36/29,875.05 = 7,436.43/x
  3. Step 3: Cross multiply
    19,917.36x = 29,875.05 × 7,436.43
  4. Step 4: Simplify right side
    19,917.36x = 222,163,718.07
  5. Step 5: Solve for x
    x = 222,163,718.07/19,917.36
  6. Step 6: Final answer
    x = 11,154.28

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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.