Home / 28,402.20-42,607.98-8,676.18

Finding the Fourth Proportional to 28,402.20, 42,607.98 and 8,676.18

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Solution

The fourth proportional to 28,402.20, 42,607.98 and 8,676.18 is: 13,015.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402.20 : 42,607.98 = 8,676.18 : x
  2. Step 2: Convert to fraction form
    28,402.20/42,607.98 = 8,676.18/x
  3. Step 3: Cross multiply
    28,402.20x = 42,607.98 × 8,676.18
  4. Step 4: Simplify right side
    28,402.20x = 369,674,503.92
  5. Step 5: Solve for x
    x = 369,674,503.92/28,402.20
  6. Step 6: Final answer
    x = 13,015.70

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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.