Home / 45,108.04-67,662.82-13,943

Finding the Fourth Proportional to 45,108.04, 67,662.82 and 13,943

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Solution

The fourth proportional to 45,108.04, 67,662.82 and 13,943 is: 20,914.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,108.04 : 67,662.82 = 13,943 : x
  2. Step 2: Convert to fraction form
    45,108.04/67,662.82 = 13,943/x
  3. Step 3: Cross multiply
    45,108.04x = 67,662.82 × 13,943
  4. Step 4: Simplify right side
    45,108.04x = 943,422,699.26
  5. Step 5: Solve for x
    x = 943,422,699.26/45,108.04
  6. Step 6: Final answer
    x = 20,914.73

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1.5x scale

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.