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Finding the Fourth Proportional to 30,028, 45,058.07 and 19,495.55

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Solution

The fourth proportional to 30,028, 45,058.07 and 19,495.55 is: 29,253.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,028 : 45,058.07 = 19,495.55 : x
  2. Step 2: Convert to fraction form
    30,028/45,058.07 = 19,495.55/x
  3. Step 3: Cross multiply
    30,028x = 45,058.07 × 19,495.55
  4. Step 4: Simplify right side
    30,028x = 878,431,856.59
  5. Step 5: Solve for x
    x = 878,431,856.59/30,028
  6. Step 6: Final answer
    x = 29,253.76

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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.