Home / 39,884.46-55,040.65-21,735.32

Finding the Fourth Proportional to 39,884.46, 55,040.65 and 21,735.32

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Solution

The fourth proportional to 39,884.46, 55,040.65 and 21,735.32 is: 29,994.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,884.46 : 55,040.65 = 21,735.32 : x
  2. Step 2: Convert to fraction form
    39,884.46/55,040.65 = 21,735.32/x
  3. Step 3: Cross multiply
    39,884.46x = 55,040.65 × 21,735.32
  4. Step 4: Simplify right side
    39,884.46x = 1,196,326,140.76
  5. Step 5: Solve for x
    x = 1,196,326,140.76/39,884.46
  6. Step 6: Final answer
    x = 29,994.79

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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.