Home / 25,071.75-34,579.09-21,307.38

Finding the Fourth Proportional to 25,071.75, 34,579.09 and 21,307.38

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Solution

The fourth proportional to 25,071.75, 34,579.09 and 21,307.38 is: 29,387.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,071.75 : 34,579.09 = 21,307.38 : x
  2. Step 2: Convert to fraction form
    25,071.75/34,579.09 = 21,307.38/x
  3. Step 3: Cross multiply
    25,071.75x = 34,579.09 × 21,307.38
  4. Step 4: Simplify right side
    25,071.75x = 736,789,774.94
  5. Step 5: Solve for x
    x = 736,789,774.94/25,071.75
  6. Step 6: Final answer
    x = 29,387.25

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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.