Home / 20,934.68-28,918.50-17,004.56

Finding the Fourth Proportional to 20,934.68, 28,918.50 and 17,004.56

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Solution

The fourth proportional to 20,934.68, 28,918.50 and 17,004.56 is: 23,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.68 : 28,918.50 = 17,004.56 : x
  2. Step 2: Convert to fraction form
    20,934.68/28,918.50 = 17,004.56/x
  3. Step 3: Cross multiply
    20,934.68x = 28,918.50 × 17,004.56
  4. Step 4: Simplify right side
    20,934.68x = 491,746,368.36
  5. Step 5: Solve for x
    x = 491,746,368.36/20,934.68
  6. Step 6: Final answer
    x = 23,489.56

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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.