Home / 19,231.50-26,539.47-10,399.50

Finding the Fourth Proportional to 19,231.50, 26,539.47 and 10,399.50

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Solution

The fourth proportional to 19,231.50, 26,539.47 and 10,399.50 is: 14,351.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,231.50 : 26,539.47 = 10,399.50 : x
  2. Step 2: Convert to fraction form
    19,231.50/26,539.47 = 10,399.50/x
  3. Step 3: Cross multiply
    19,231.50x = 26,539.47 × 10,399.50
  4. Step 4: Simplify right side
    19,231.50x = 275,997,218.27
  5. Step 5: Solve for x
    x = 275,997,218.27/19,231.50
  6. Step 6: Final answer
    x = 14,351.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.