Home / 20,075.36-30,142.20-14,826.56

Finding the Fourth Proportional to 20,075.36, 30,142.20 and 14,826.56

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Solution

The fourth proportional to 20,075.36, 30,142.20 and 14,826.56 is: 22,261.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.36 : 30,142.20 = 14,826.56 : x
  2. Step 2: Convert to fraction form
    20,075.36/30,142.20 = 14,826.56/x
  3. Step 3: Cross multiply
    20,075.36x = 30,142.20 × 14,826.56
  4. Step 4: Simplify right side
    20,075.36x = 446,905,136.83
  5. Step 5: Solve for x
    x = 446,905,136.83/20,075.36
  6. Step 6: Final answer
    x = 22,261.38

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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.