Home / 25,715.72-38,559.69-11,668.08

Finding the Fourth Proportional to 25,715.72, 38,559.69 and 11,668.08

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Solution

The fourth proportional to 25,715.72, 38,559.69 and 11,668.08 is: 17,495.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,715.72 : 38,559.69 = 11,668.08 : x
  2. Step 2: Convert to fraction form
    25,715.72/38,559.69 = 11,668.08/x
  3. Step 3: Cross multiply
    25,715.72x = 38,559.69 × 11,668.08
  4. Step 4: Simplify right side
    25,715.72x = 449,917,547.70
  5. Step 5: Solve for x
    x = 449,917,547.70/25,715.72
  6. Step 6: Final answer
    x = 17,495.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.