Home / 39,071.44-53,918.56-21,166.32

Finding the Fourth Proportional to 39,071.44, 53,918.56 and 21,166.32

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Solution

The fourth proportional to 39,071.44, 53,918.56 and 21,166.32 is: 29,209.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,071.44 : 53,918.56 = 21,166.32 : x
  2. Step 2: Convert to fraction form
    39,071.44/53,918.56 = 21,166.32/x
  3. Step 3: Cross multiply
    39,071.44x = 53,918.56 × 21,166.32
  4. Step 4: Simplify right side
    39,071.44x = 1,141,257,494.90
  5. Step 5: Solve for x
    x = 1,141,257,494.90/39,071.44
  6. Step 6: Final answer
    x = 29,209.51

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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.