Home / 40,027.78-55,237.48-22,122.39

Finding the Fourth Proportional to 40,027.78, 55,237.48 and 22,122.39

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Solution

The fourth proportional to 40,027.78, 55,237.48 and 22,122.39 is: 30,528.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,027.78 : 55,237.48 = 22,122.39 : x
  2. Step 2: Convert to fraction form
    40,027.78/55,237.48 = 22,122.39/x
  3. Step 3: Cross multiply
    40,027.78x = 55,237.48 × 22,122.39
  4. Step 4: Simplify right side
    40,027.78x = 1,221,985,075.18
  5. Step 5: Solve for x
    x = 1,221,985,075.18/40,027.78
  6. Step 6: Final answer
    x = 30,528.42

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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.