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Finding the Fourth Proportional to 29,989.92, 45,014.04 and 14,418.48

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Solution

The fourth proportional to 29,989.92, 45,014.04 and 14,418.48 is: 21,641.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,989.92 : 45,014.04 = 14,418.48 : x
  2. Step 2: Convert to fraction form
    29,989.92/45,014.04 = 14,418.48/x
  3. Step 3: Cross multiply
    29,989.92x = 45,014.04 × 14,418.48
  4. Step 4: Simplify right side
    29,989.92x = 649,033,963.37
  5. Step 5: Solve for x
    x = 649,033,963.37/29,989.92
  6. Step 6: Final answer
    x = 21,641.74

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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.