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Finding the Fourth Proportional to 28,998.84, 40,021.22 and 16,254.18

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Solution

The fourth proportional to 28,998.84, 40,021.22 and 16,254.18 is: 22,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.84 : 40,021.22 = 16,254.18 : x
  2. Step 2: Convert to fraction form
    28,998.84/40,021.22 = 16,254.18/x
  3. Step 3: Cross multiply
    28,998.84x = 40,021.22 × 16,254.18
  4. Step 4: Simplify right side
    28,998.84x = 650,512,032.43
  5. Step 5: Solve for x
    x = 650,512,032.43/28,998.84
  6. Step 6: Final answer
    x = 22,432.35

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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.