Home / 39,983.94-59,928.12-18,607.80

Finding the Fourth Proportional to 39,983.94, 59,928.12 and 18,607.80

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Solution

The fourth proportional to 39,983.94, 59,928.12 and 18,607.80 is: 27,889.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,983.94 : 59,928.12 = 18,607.80 : x
  2. Step 2: Convert to fraction form
    39,983.94/59,928.12 = 18,607.80/x
  3. Step 3: Cross multiply
    39,983.94x = 59,928.12 × 18,607.80
  4. Step 4: Simplify right side
    39,983.94x = 1,115,130,471.34
  5. Step 5: Solve for x
    x = 1,115,130,471.34/39,983.94
  6. Step 6: Final answer
    x = 27,889.46

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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.