Home / 13,985.51-20,975.22-4,623.31

Finding the Fourth Proportional to 13,985.51, 20,975.22 and 4,623.31

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Solution

The fourth proportional to 13,985.51, 20,975.22 and 4,623.31 is: 6,933.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.51 : 20,975.22 = 4,623.31 : x
  2. Step 2: Convert to fraction form
    13,985.51/20,975.22 = 4,623.31/x
  3. Step 3: Cross multiply
    13,985.51x = 20,975.22 × 4,623.31
  4. Step 4: Simplify right side
    13,985.51x = 96,974,921.26
  5. Step 5: Solve for x
    x = 96,974,921.26/13,985.51
  6. Step 6: Final answer
    x = 6,933.96

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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.