Home / 30,119.84-45,130.48-18,237.61

Finding the Fourth Proportional to 30,119.84, 45,130.48 and 18,237.61

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Solution

The fourth proportional to 30,119.84, 45,130.48 and 18,237.61 is: 27,326.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.84 : 45,130.48 = 18,237.61 : x
  2. Step 2: Convert to fraction form
    30,119.84/45,130.48 = 18,237.61/x
  3. Step 3: Cross multiply
    30,119.84x = 45,130.48 × 18,237.61
  4. Step 4: Simplify right side
    30,119.84x = 823,072,093.35
  5. Step 5: Solve for x
    x = 823,072,093.35/30,119.84
  6. Step 6: Final answer
    x = 27,326.58

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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.