Home / 39,883.46-55,038.49-21,734.35

Finding the Fourth Proportional to 39,883.46, 55,038.49 and 21,734.35

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Solution

The fourth proportional to 39,883.46, 55,038.49 and 21,734.35 is: 29,993.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,883.46 : 55,038.49 = 21,734.35 : x
  2. Step 2: Convert to fraction form
    39,883.46/55,038.49 = 21,734.35/x
  3. Step 3: Cross multiply
    39,883.46x = 55,038.49 × 21,734.35
  4. Step 4: Simplify right side
    39,883.46x = 1,196,225,768.00
  5. Step 5: Solve for x
    x = 1,196,225,768.00/39,883.46
  6. Step 6: Final answer
    x = 29,993.03

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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.