Home / 30,131.64-41,576.56-20,075.08

Finding the Fourth Proportional to 30,131.64, 41,576.56 and 20,075.08

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Solution

The fourth proportional to 30,131.64, 41,576.56 and 20,075.08 is: 27,700.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,131.64 : 41,576.56 = 20,075.08 : x
  2. Step 2: Convert to fraction form
    30,131.64/41,576.56 = 20,075.08/x
  3. Step 3: Cross multiply
    30,131.64x = 41,576.56 × 20,075.08
  4. Step 4: Simplify right side
    30,131.64x = 834,652,768.12
  5. Step 5: Solve for x
    x = 834,652,768.12/30,131.64
  6. Step 6: Final answer
    x = 27,700.21

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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.