Home / 19,148.49-28,722.77-9,289.22

Finding the Fourth Proportional to 19,148.49, 28,722.77 and 9,289.22

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Solution

The fourth proportional to 19,148.49, 28,722.77 and 9,289.22 is: 13,933.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,148.49 : 28,722.77 = 9,289.22 : x
  2. Step 2: Convert to fraction form
    19,148.49/28,722.77 = 9,289.22/x
  3. Step 3: Cross multiply
    19,148.49x = 28,722.77 × 9,289.22
  4. Step 4: Simplify right side
    19,148.49x = 266,811,939.48
  5. Step 5: Solve for x
    x = 266,811,939.48/19,148.49
  6. Step 6: Final answer
    x = 13,933.84

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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.