Home / 39,120.86-53,985.33-23,195.78

Finding the Fourth Proportional to 39,120.86, 53,985.33 and 23,195.78

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Solution

The fourth proportional to 39,120.86, 53,985.33 and 23,195.78 is: 32,009.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,120.86 : 53,985.33 = 23,195.78 : x
  2. Step 2: Convert to fraction form
    39,120.86/53,985.33 = 23,195.78/x
  3. Step 3: Cross multiply
    39,120.86x = 53,985.33 × 23,195.78
  4. Step 4: Simplify right side
    39,120.86x = 1,252,231,837.91
  5. Step 5: Solve for x
    x = 1,252,231,837.91/39,120.86
  6. Step 6: Final answer
    x = 32,009.31

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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.