Home / 39,168.36-58,740.39-12,866.85

Finding the Fourth Proportional to 39,168.36, 58,740.39 and 12,866.85

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Solution

The fourth proportional to 39,168.36, 58,740.39 and 12,866.85 is: 19,296.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.36 : 58,740.39 = 12,866.85 : x
  2. Step 2: Convert to fraction form
    39,168.36/58,740.39 = 12,866.85/x
  3. Step 3: Cross multiply
    39,168.36x = 58,740.39 × 12,866.85
  4. Step 4: Simplify right side
    39,168.36x = 755,803,787.07
  5. Step 5: Solve for x
    x = 755,803,787.07/39,168.36
  6. Step 6: Final answer
    x = 19,296.28

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1.5x scale

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.