Home / 20,746.31-28,628.77-11,792.57

Finding the Fourth Proportional to 20,746.31, 28,628.77 and 11,792.57

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Solution

The fourth proportional to 20,746.31, 28,628.77 and 11,792.57 is: 16,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.31 : 28,628.77 = 11,792.57 : x
  2. Step 2: Convert to fraction form
    20,746.31/28,628.77 = 11,792.57/x
  3. Step 3: Cross multiply
    20,746.31x = 28,628.77 × 11,792.57
  4. Step 4: Simplify right side
    20,746.31x = 337,606,774.24
  5. Step 5: Solve for x
    x = 337,606,774.24/20,746.31
  6. Step 6: Final answer
    x = 16,273.10

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1.5x scale

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.