Home / 20,966.88-28,935.70-11,536.04

Finding the Fourth Proportional to 20,966.88, 28,935.70 and 11,536.04

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Solution

The fourth proportional to 20,966.88, 28,935.70 and 11,536.04 is: 15,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.88 : 28,935.70 = 11,536.04 : x
  2. Step 2: Convert to fraction form
    20,966.88/28,935.70 = 11,536.04/x
  3. Step 3: Cross multiply
    20,966.88x = 28,935.70 × 11,536.04
  4. Step 4: Simplify right side
    20,966.88x = 333,803,392.63
  5. Step 5: Solve for x
    x = 333,803,392.63/20,966.88
  6. Step 6: Final answer
    x = 15,920.51

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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.