Home / 31,907.36-44,031.43-19,977.28

Finding the Fourth Proportional to 31,907.36, 44,031.43 and 19,977.28

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Solution

The fourth proportional to 31,907.36, 44,031.43 and 19,977.28 is: 27,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,907.36 : 44,031.43 = 19,977.28 : x
  2. Step 2: Convert to fraction form
    31,907.36/44,031.43 = 19,977.28/x
  3. Step 3: Cross multiply
    31,907.36x = 44,031.43 × 19,977.28
  4. Step 4: Simplify right side
    31,907.36x = 879,628,120.80
  5. Step 5: Solve for x
    x = 879,628,120.80/31,907.36
  6. Step 6: Final answer
    x = 27,568.19

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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.