Home / 28,223.70-42,335.94-19,456.26

Finding the Fourth Proportional to 28,223.70, 42,335.94 and 19,456.26

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Solution

The fourth proportional to 28,223.70, 42,335.94 and 19,456.26 is: 29,184.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.70 : 42,335.94 = 19,456.26 : x
  2. Step 2: Convert to fraction form
    28,223.70/42,335.94 = 19,456.26/x
  3. Step 3: Cross multiply
    28,223.70x = 42,335.94 × 19,456.26
  4. Step 4: Simplify right side
    28,223.70x = 823,699,055.98
  5. Step 5: Solve for x
    x = 823,699,055.98/28,223.70
  6. Step 6: Final answer
    x = 29,184.66

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1.5x scale

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.