Home / 30,189.95-41,662.29-18,866.03

Finding the Fourth Proportional to 30,189.95, 41,662.29 and 18,866.03

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Solution

The fourth proportional to 30,189.95, 41,662.29 and 18,866.03 is: 26,035.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,189.95 : 41,662.29 = 18,866.03 : x
  2. Step 2: Convert to fraction form
    30,189.95/41,662.29 = 18,866.03/x
  3. Step 3: Cross multiply
    30,189.95x = 41,662.29 × 18,866.03
  4. Step 4: Simplify right side
    30,189.95x = 786,002,013.01
  5. Step 5: Solve for x
    x = 786,002,013.01/30,189.95
  6. Step 6: Final answer
    x = 26,035.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.