Home / 39,795.81-59,680.84-13,135.81

Finding the Fourth Proportional to 39,795.81, 59,680.84 and 13,135.81

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Solution

The fourth proportional to 39,795.81, 59,680.84 and 13,135.81 is: 19,699.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,795.81 : 59,680.84 = 13,135.81 : x
  2. Step 2: Convert to fraction form
    39,795.81/59,680.84 = 13,135.81/x
  3. Step 3: Cross multiply
    39,795.81x = 59,680.84 × 13,135.81
  4. Step 4: Simplify right side
    39,795.81x = 783,956,042.10
  5. Step 5: Solve for x
    x = 783,956,042.10/39,795.81
  6. Step 6: Final answer
    x = 19,699.46

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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.