Home / 19,782.05-29,663.49-7,307.94

Finding the Fourth Proportional to 19,782.05, 29,663.49 and 7,307.94

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Solution

The fourth proportional to 19,782.05, 29,663.49 and 7,307.94 is: 10,958.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.05 : 29,663.49 = 7,307.94 : x
  2. Step 2: Convert to fraction form
    19,782.05/29,663.49 = 7,307.94/x
  3. Step 3: Cross multiply
    19,782.05x = 29,663.49 × 7,307.94
  4. Step 4: Simplify right side
    19,782.05x = 216,779,143.75
  5. Step 5: Solve for x
    x = 216,779,143.75/19,782.05
  6. Step 6: Final answer
    x = 10,958.38

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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.