Home / 39,816.63-59,731.56-13,168.98

Finding the Fourth Proportional to 39,816.63, 59,731.56 and 13,168.98

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Solution

The fourth proportional to 39,816.63, 59,731.56 and 13,168.98 is: 19,755.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,816.63 : 59,731.56 = 13,168.98 : x
  2. Step 2: Convert to fraction form
    39,816.63/59,731.56 = 13,168.98/x
  3. Step 3: Cross multiply
    39,816.63x = 59,731.56 × 13,168.98
  4. Step 4: Simplify right side
    39,816.63x = 786,603,719.01
  5. Step 5: Solve for x
    x = 786,603,719.01/39,816.63
  6. Step 6: Final answer
    x = 19,755.66

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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.