Home / 28,491.85-42,703.64-13,273.90

Finding the Fourth Proportional to 28,491.85, 42,703.64 and 13,273.90

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Solution

The fourth proportional to 28,491.85, 42,703.64 and 13,273.90 is: 19,894.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,491.85 : 42,703.64 = 13,273.90 : x
  2. Step 2: Convert to fraction form
    28,491.85/42,703.64 = 13,273.90/x
  3. Step 3: Cross multiply
    28,491.85x = 42,703.64 × 13,273.90
  4. Step 4: Simplify right side
    28,491.85x = 566,843,847.00
  5. Step 5: Solve for x
    x = 566,843,847.00/28,491.85
  6. Step 6: Final answer
    x = 19,894.95

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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.