Home / 39,070.67-53,917.39-21,165.66

Finding the Fourth Proportional to 39,070.67, 53,917.39 and 21,165.66

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Solution

The fourth proportional to 39,070.67, 53,917.39 and 21,165.66 is: 29,208.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,070.67 : 53,917.39 = 21,165.66 : x
  2. Step 2: Convert to fraction form
    39,070.67/53,917.39 = 21,165.66/x
  3. Step 3: Cross multiply
    39,070.67x = 53,917.39 × 21,165.66
  4. Step 4: Simplify right side
    39,070.67x = 1,141,197,144.83
  5. Step 5: Solve for x
    x = 1,141,197,144.83/39,070.67
  6. Step 6: Final answer
    x = 29,208.54

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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.