Home / 20,322.03-28,053.99-15,288.17

Finding the Fourth Proportional to 20,322.03, 28,053.99 and 15,288.17

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Solution

The fourth proportional to 20,322.03, 28,053.99 and 15,288.17 is: 21,104.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.03 : 28,053.99 = 15,288.17 : x
  2. Step 2: Convert to fraction form
    20,322.03/28,053.99 = 15,288.17/x
  3. Step 3: Cross multiply
    20,322.03x = 28,053.99 × 15,288.17
  4. Step 4: Simplify right side
    20,322.03x = 428,894,206.52
  5. Step 5: Solve for x
    x = 428,894,206.52/20,322.03
  6. Step 6: Final answer
    x = 21,104.89

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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.