Home / 39,315.36-58,982.80-18,534.08

Finding the Fourth Proportional to 39,315.36, 58,982.80 and 18,534.08

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Solution

The fourth proportional to 39,315.36, 58,982.80 and 18,534.08 is: 27,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,315.36 : 58,982.80 = 18,534.08 : x
  2. Step 2: Convert to fraction form
    39,315.36/58,982.80 = 18,534.08/x
  3. Step 3: Cross multiply
    39,315.36x = 58,982.80 × 18,534.08
  4. Step 4: Simplify right side
    39,315.36x = 1,093,191,933.82
  5. Step 5: Solve for x
    x = 1,093,191,933.82/39,315.36
  6. Step 6: Final answer
    x = 27,805.72

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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.