Home / 28,730.34-39,651.48-16,155

Finding the Fourth Proportional to 28,730.34, 39,651.48 and 16,155

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Solution

The fourth proportional to 28,730.34, 39,651.48 and 16,155 is: 22,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.34 : 39,651.48 = 16,155 : x
  2. Step 2: Convert to fraction form
    28,730.34/39,651.48 = 16,155/x
  3. Step 3: Cross multiply
    28,730.34x = 39,651.48 × 16,155
  4. Step 4: Simplify right side
    28,730.34x = 640,569,659.40
  5. Step 5: Solve for x
    x = 640,569,659.40/28,730.34
  6. Step 6: Final answer
    x = 22,295.93

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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.