Home / 39,009.89-53,833.50-21,104.90

Finding the Fourth Proportional to 39,009.89, 53,833.50 and 21,104.90

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Solution

The fourth proportional to 39,009.89, 53,833.50 and 21,104.90 is: 29,124.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,009.89 : 53,833.50 = 21,104.90 : x
  2. Step 2: Convert to fraction form
    39,009.89/53,833.50 = 21,104.90/x
  3. Step 3: Cross multiply
    39,009.89x = 53,833.50 × 21,104.90
  4. Step 4: Simplify right side
    39,009.89x = 1,136,150,364.98
  5. Step 5: Solve for x
    x = 1,136,150,364.98/39,009.89
  6. Step 6: Final answer
    x = 29,124.68

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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.