Home / 19,903.36-29,860.05-7,423.79

Finding the Fourth Proportional to 19,903.36, 29,860.05 and 7,423.79

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Solution

The fourth proportional to 19,903.36, 29,860.05 and 7,423.79 is: 11,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.36 : 29,860.05 = 7,423.79 : x
  2. Step 2: Convert to fraction form
    19,903.36/29,860.05 = 7,423.79/x
  3. Step 3: Cross multiply
    19,903.36x = 29,860.05 × 7,423.79
  4. Step 4: Simplify right side
    19,903.36x = 221,674,843.08
  5. Step 5: Solve for x
    x = 221,674,843.08/19,903.36
  6. Step 6: Final answer
    x = 11,137.56

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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.