Home / 30,090.75-41,526.68-18,153.84

Finding the Fourth Proportional to 30,090.75, 41,526.68 and 18,153.84

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Solution

The fourth proportional to 30,090.75, 41,526.68 and 18,153.84 is: 25,053.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.75 : 41,526.68 = 18,153.84 : x
  2. Step 2: Convert to fraction form
    30,090.75/41,526.68 = 18,153.84/x
  3. Step 3: Cross multiply
    30,090.75x = 41,526.68 × 18,153.84
  4. Step 4: Simplify right side
    30,090.75x = 753,868,704.45
  5. Step 5: Solve for x
    x = 753,868,704.45/30,090.75
  6. Step 6: Final answer
    x = 25,053.17

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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.