Home / 28,124.10-42,194.61-8,403.30

Finding the Fourth Proportional to 28,124.10, 42,194.61 and 8,403.30

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Solution

The fourth proportional to 28,124.10, 42,194.61 and 8,403.30 is: 12,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124.10 : 42,194.61 = 8,403.30 : x
  2. Step 2: Convert to fraction form
    28,124.10/42,194.61 = 8,403.30/x
  3. Step 3: Cross multiply
    28,124.10x = 42,194.61 × 8,403.30
  4. Step 4: Simplify right side
    28,124.10x = 354,573,966.21
  5. Step 5: Solve for x
    x = 354,573,966.21/28,124.10
  6. Step 6: Final answer
    x = 12,607.48

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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.