Home / 39,104.21-53,964.09-21,199.50

Finding the Fourth Proportional to 39,104.21, 53,964.09 and 21,199.50

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Solution

The fourth proportional to 39,104.21, 53,964.09 and 21,199.50 is: 29,255.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,104.21 : 53,964.09 = 21,199.50 : x
  2. Step 2: Convert to fraction form
    39,104.21/53,964.09 = 21,199.50/x
  3. Step 3: Cross multiply
    39,104.21x = 53,964.09 × 21,199.50
  4. Step 4: Simplify right side
    39,104.21x = 1,144,011,725.96
  5. Step 5: Solve for x
    x = 1,144,011,725.96/39,104.21
  6. Step 6: Final answer
    x = 29,255.46

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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.