Home / 39,865.65-59,808.29-11,785.57

Finding the Fourth Proportional to 39,865.65, 59,808.29 and 11,785.57

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Solution

The fourth proportional to 39,865.65, 59,808.29 and 11,785.57 is: 17,681.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865.65 : 59,808.29 = 11,785.57 : x
  2. Step 2: Convert to fraction form
    39,865.65/59,808.29 = 11,785.57/x
  3. Step 3: Cross multiply
    39,865.65x = 59,808.29 × 11,785.57
  4. Step 4: Simplify right side
    39,865.65x = 704,874,788.38
  5. Step 5: Solve for x
    x = 704,874,788.38/39,865.65
  6. Step 6: Final answer
    x = 17,681.26

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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.