Home / 20,346.84-28,075.14-12,797.64

Finding the Fourth Proportional to 20,346.84, 28,075.14 and 12,797.64

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Solution

The fourth proportional to 20,346.84, 28,075.14 and 12,797.64 is: 17,658.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346.84 : 28,075.14 = 12,797.64 : x
  2. Step 2: Convert to fraction form
    20,346.84/28,075.14 = 12,797.64/x
  3. Step 3: Cross multiply
    20,346.84x = 28,075.14 × 12,797.64
  4. Step 4: Simplify right side
    20,346.84x = 359,295,534.67
  5. Step 5: Solve for x
    x = 359,295,534.67/20,346.84
  6. Step 6: Final answer
    x = 17,658.54

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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.