Home / 39,071.79-53,918.97-21,167.24

Finding the Fourth Proportional to 39,071.79, 53,918.97 and 21,167.24

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Solution

The fourth proportional to 39,071.79, 53,918.97 and 21,167.24 is: 29,210.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,071.79 : 53,918.97 = 21,167.24 : x
  2. Step 2: Convert to fraction form
    39,071.79/53,918.97 = 21,167.24/x
  3. Step 3: Cross multiply
    39,071.79x = 53,918.97 × 21,167.24
  4. Step 4: Simplify right side
    39,071.79x = 1,141,315,508.95
  5. Step 5: Solve for x
    x = 1,141,315,508.95/39,071.79
  6. Step 6: Final answer
    x = 29,210.73

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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.