Home / 42,738.03-58,999.19-30,018.20

Finding the Fourth Proportional to 42,738.03, 58,999.19 and 30,018.20

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Solution

The fourth proportional to 42,738.03, 58,999.19 and 30,018.20 is: 41,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,738.03 : 58,999.19 = 30,018.20 : x
  2. Step 2: Convert to fraction form
    42,738.03/58,999.19 = 30,018.20/x
  3. Step 3: Cross multiply
    42,738.03x = 58,999.19 × 30,018.20
  4. Step 4: Simplify right side
    42,738.03x = 1,771,049,040.17
  5. Step 5: Solve for x
    x = 1,771,049,040.17/42,738.03
  6. Step 6: Final answer
    x = 41,439.65

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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.