Home / 19,057.02-28,603.11-9,703.78

Finding the Fourth Proportional to 19,057.02, 28,603.11 and 9,703.78

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Solution

The fourth proportional to 19,057.02, 28,603.11 and 9,703.78 is: 14,564.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,057.02 : 28,603.11 = 9,703.78 : x
  2. Step 2: Convert to fraction form
    19,057.02/28,603.11 = 9,703.78/x
  3. Step 3: Cross multiply
    19,057.02x = 28,603.11 × 9,703.78
  4. Step 4: Simplify right side
    19,057.02x = 277,558,286.76
  5. Step 5: Solve for x
    x = 277,558,286.76/19,057.02
  6. Step 6: Final answer
    x = 14,564.62

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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.