Home / 39,071.54-53,918.67-21,166.62

Finding the Fourth Proportional to 39,071.54, 53,918.67 and 21,166.62

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Solution

The fourth proportional to 39,071.54, 53,918.67 and 21,166.62 is: 29,209.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,071.54 : 53,918.67 = 21,166.62 : x
  2. Step 2: Convert to fraction form
    39,071.54/53,918.67 = 21,166.62/x
  3. Step 3: Cross multiply
    39,071.54x = 53,918.67 × 21,166.62
  4. Step 4: Simplify right side
    39,071.54x = 1,141,275,998.80
  5. Step 5: Solve for x
    x = 1,141,275,998.80/39,071.54
  6. Step 6: Final answer
    x = 29,209.91

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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.