Home / 28,551.03-42,826.83-12,756.84

Finding the Fourth Proportional to 28,551.03, 42,826.83 and 12,756.84

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Solution

The fourth proportional to 28,551.03, 42,826.83 and 12,756.84 is: 19,135.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551.03 : 42,826.83 = 12,756.84 : x
  2. Step 2: Convert to fraction form
    28,551.03/42,826.83 = 12,756.84/x
  3. Step 3: Cross multiply
    28,551.03x = 42,826.83 × 12,756.84
  4. Step 4: Simplify right side
    28,551.03x = 546,335,018.02
  5. Step 5: Solve for x
    x = 546,335,018.02/28,551.03
  6. Step 6: Final answer
    x = 19,135.39

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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.