Home / 35,639.21-49,177.80-20,536.80

Finding the Fourth Proportional to 35,639.21, 49,177.80 and 20,536.80

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Solution

The fourth proportional to 35,639.21, 49,177.80 and 20,536.80 is: 28,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,639.21 : 49,177.80 = 20,536.80 : x
  2. Step 2: Convert to fraction form
    35,639.21/49,177.80 = 20,536.80/x
  3. Step 3: Cross multiply
    35,639.21x = 49,177.80 × 20,536.80
  4. Step 4: Simplify right side
    35,639.21x = 1,009,954,643.04
  5. Step 5: Solve for x
    x = 1,009,954,643.04/35,639.21
  6. Step 6: Final answer
    x = 28,338.30

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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.