Home / 20,966.41-28,933.64-11,534.91

Finding the Fourth Proportional to 20,966.41, 28,933.64 and 11,534.91

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Solution

The fourth proportional to 20,966.41, 28,933.64 and 11,534.91 is: 15,918.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.41 : 28,933.64 = 11,534.91 : x
  2. Step 2: Convert to fraction form
    20,966.41/28,933.64 = 11,534.91/x
  3. Step 3: Cross multiply
    20,966.41x = 28,933.64 × 11,534.91
  4. Step 4: Simplify right side
    20,966.41x = 333,746,731.03
  5. Step 5: Solve for x
    x = 333,746,731.03/20,966.41
  6. Step 6: Final answer
    x = 15,918.16

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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.