Home / 28,638.86-42,958.25-16,153.21

Finding the Fourth Proportional to 28,638.86, 42,958.25 and 16,153.21

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Solution

The fourth proportional to 28,638.86, 42,958.25 and 16,153.21 is: 24,229.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,638.86 : 42,958.25 = 16,153.21 : x
  2. Step 2: Convert to fraction form
    28,638.86/42,958.25 = 16,153.21/x
  3. Step 3: Cross multiply
    28,638.86x = 42,958.25 × 16,153.21
  4. Step 4: Simplify right side
    28,638.86x = 693,913,787.81
  5. Step 5: Solve for x
    x = 693,913,787.81/28,638.86
  6. Step 6: Final answer
    x = 24,229.80

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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.