Home / 20,746.13-28,628.17-11,792.12

Finding the Fourth Proportional to 20,746.13, 28,628.17 and 11,792.12

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Solution

The fourth proportional to 20,746.13, 28,628.17 and 11,792.12 is: 16,272.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.13 : 28,628.17 = 11,792.12 : x
  2. Step 2: Convert to fraction form
    20,746.13/28,628.17 = 11,792.12/x
  3. Step 3: Cross multiply
    20,746.13x = 28,628.17 × 11,792.12
  4. Step 4: Simplify right side
    20,746.13x = 337,586,643.40
  5. Step 5: Solve for x
    x = 337,586,643.40/20,746.13
  6. Step 6: Final answer
    x = 16,272.27

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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.