Home / 31,556.07-43,561.68-20,075.70

Finding the Fourth Proportional to 31,556.07, 43,561.68 and 20,075.70

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Solution

The fourth proportional to 31,556.07, 43,561.68 and 20,075.70 is: 27,713.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,556.07 : 43,561.68 = 20,075.70 : x
  2. Step 2: Convert to fraction form
    31,556.07/43,561.68 = 20,075.70/x
  3. Step 3: Cross multiply
    31,556.07x = 43,561.68 × 20,075.70
  4. Step 4: Simplify right side
    31,556.07x = 874,531,219.18
  5. Step 5: Solve for x
    x = 874,531,219.18/31,556.07
  6. Step 6: Final answer
    x = 27,713.57

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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.