Home / 20,564.42-28,333.77-13,838.37

Finding the Fourth Proportional to 20,564.42, 28,333.77 and 13,838.37

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Solution

The fourth proportional to 20,564.42, 28,333.77 and 13,838.37 is: 19,066.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564.42 : 28,333.77 = 13,838.37 : x
  2. Step 2: Convert to fraction form
    20,564.42/28,333.77 = 13,838.37/x
  3. Step 3: Cross multiply
    20,564.42x = 28,333.77 × 13,838.37
  4. Step 4: Simplify right side
    20,564.42x = 392,093,034.61
  5. Step 5: Solve for x
    x = 392,093,034.61/20,564.42
  6. Step 6: Final answer
    x = 19,066.58

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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.