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Finding the Fourth Proportional to 30,201.54, 41,663.66 and 21,254.01

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Solution

The fourth proportional to 30,201.54, 41,663.66 and 21,254.01 is: 29,320.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.54 : 41,663.66 = 21,254.01 : x
  2. Step 2: Convert to fraction form
    30,201.54/41,663.66 = 21,254.01/x
  3. Step 3: Cross multiply
    30,201.54x = 41,663.66 × 21,254.01
  4. Step 4: Simplify right side
    30,201.54x = 885,519,846.28
  5. Step 5: Solve for x
    x = 885,519,846.28/30,201.54
  6. Step 6: Final answer
    x = 29,320.35

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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.