Home / 28,895.52-39,879.48-16,320

Finding the Fourth Proportional to 28,895.52, 39,879.48 and 16,320

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Solution

The fourth proportional to 28,895.52, 39,879.48 and 16,320 is: 22,523.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,895.52 : 39,879.48 = 16,320 : x
  2. Step 2: Convert to fraction form
    28,895.52/39,879.48 = 16,320/x
  3. Step 3: Cross multiply
    28,895.52x = 39,879.48 × 16,320
  4. Step 4: Simplify right side
    28,895.52x = 650,833,113.60
  5. Step 5: Solve for x
    x = 650,833,113.60/28,895.52
  6. Step 6: Final answer
    x = 22,523.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.