Home / 28,583.76-39,419.28-19,615.44

Finding the Fourth Proportional to 28,583.76, 39,419.28 and 19,615.44

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Solution

The fourth proportional to 28,583.76, 39,419.28 and 19,615.44 is: 27,051.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,583.76 : 39,419.28 = 19,615.44 : x
  2. Step 2: Convert to fraction form
    28,583.76/39,419.28 = 19,615.44/x
  3. Step 3: Cross multiply
    28,583.76x = 39,419.28 × 19,615.44
  4. Step 4: Simplify right side
    28,583.76x = 773,226,521.68
  5. Step 5: Solve for x
    x = 773,226,521.68/28,583.76
  6. Step 6: Final answer
    x = 27,051.25

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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.