Home / 30,543.12-45,699.89-18,069.03

Finding the Fourth Proportional to 30,543.12, 45,699.89 and 18,069.03

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Solution

The fourth proportional to 30,543.12, 45,699.89 and 18,069.03 is: 27,035.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,543.12 : 45,699.89 = 18,069.03 : x
  2. Step 2: Convert to fraction form
    30,543.12/45,699.89 = 18,069.03/x
  3. Step 3: Cross multiply
    30,543.12x = 45,699.89 × 18,069.03
  4. Step 4: Simplify right side
    30,543.12x = 825,752,593.06
  5. Step 5: Solve for x
    x = 825,752,593.06/30,543.12
  6. Step 6: Final answer
    x = 27,035.63

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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.