Home / 39,875.37-55,027.74-21,969.96

Finding the Fourth Proportional to 39,875.37, 55,027.74 and 21,969.96

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Solution

The fourth proportional to 39,875.37, 55,027.74 and 21,969.96 is: 30,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,875.37 : 55,027.74 = 21,969.96 : x
  2. Step 2: Convert to fraction form
    39,875.37/55,027.74 = 21,969.96/x
  3. Step 3: Cross multiply
    39,875.37x = 55,027.74 × 21,969.96
  4. Step 4: Simplify right side
    39,875.37x = 1,208,957,246.69
  5. Step 5: Solve for x
    x = 1,208,957,246.69/39,875.37
  6. Step 6: Final answer
    x = 30,318.40

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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.