Home / 28,652.22-42,977.64-16,880.65

Finding the Fourth Proportional to 28,652.22, 42,977.64 and 16,880.65

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Solution

The fourth proportional to 28,652.22, 42,977.64 and 16,880.65 is: 25,320.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.22 : 42,977.64 = 16,880.65 : x
  2. Step 2: Convert to fraction form
    28,652.22/42,977.64 = 16,880.65/x
  3. Step 3: Cross multiply
    28,652.22x = 42,977.64 × 16,880.65
  4. Step 4: Simplify right side
    28,652.22x = 725,490,498.67
  5. Step 5: Solve for x
    x = 725,490,498.67/28,652.22
  6. Step 6: Final answer
    x = 25,320.57

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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.