Home / 30,396-45,556.56-21,583.20

Finding the Fourth Proportional to 30,396, 45,556.56 and 21,583.20

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Solution

The fourth proportional to 30,396, 45,556.56 and 21,583.20 is: 32,348.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,396 : 45,556.56 = 21,583.20 : x
  2. Step 2: Convert to fraction form
    30,396/45,556.56 = 21,583.20/x
  3. Step 3: Cross multiply
    30,396x = 45,556.56 × 21,583.20
  4. Step 4: Simplify right side
    30,396x = 983,256,345.79
  5. Step 5: Solve for x
    x = 983,256,345.79/30,396
  6. Step 6: Final answer
    x = 32,348.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.