Home / 20,075.37-27,717.01-12,908.50

Finding the Fourth Proportional to 20,075.37, 27,717.01 and 12,908.50

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Solution

The fourth proportional to 20,075.37, 27,717.01 and 12,908.50 is: 17,822.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.37 : 27,717.01 = 12,908.50 : x
  2. Step 2: Convert to fraction form
    20,075.37/27,717.01 = 12,908.50/x
  3. Step 3: Cross multiply
    20,075.37x = 27,717.01 × 12,908.50
  4. Step 4: Simplify right side
    20,075.37x = 357,784,991.31
  5. Step 5: Solve for x
    x = 357,784,991.31/20,075.37
  6. Step 6: Final answer
    x = 17,822.08

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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.