Home / 20,575.51-28,394.16-11,622.58

Finding the Fourth Proportional to 20,575.51, 28,394.16 and 11,622.58

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Solution

The fourth proportional to 20,575.51, 28,394.16 and 11,622.58 is: 16,039.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.51 : 28,394.16 = 11,622.58 : x
  2. Step 2: Convert to fraction form
    20,575.51/28,394.16 = 11,622.58/x
  3. Step 3: Cross multiply
    20,575.51x = 28,394.16 × 11,622.58
  4. Step 4: Simplify right side
    20,575.51x = 330,013,396.13
  5. Step 5: Solve for x
    x = 330,013,396.13/20,575.51
  6. Step 6: Final answer
    x = 16,039.14

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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.