Home / 39,897.78-59,828.27-11,807.79

Finding the Fourth Proportional to 39,897.78, 59,828.27 and 11,807.79

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Solution

The fourth proportional to 39,897.78, 59,828.27 and 11,807.79 is: 17,706.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.78 : 59,828.27 = 11,807.79 : x
  2. Step 2: Convert to fraction form
    39,897.78/59,828.27 = 11,807.79/x
  3. Step 3: Cross multiply
    39,897.78x = 59,828.27 × 11,807.79
  4. Step 4: Simplify right side
    39,897.78x = 706,439,648.22
  5. Step 5: Solve for x
    x = 706,439,648.22/39,897.78
  6. Step 6: Final answer
    x = 17,706.24

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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.