Home / 15,430.21-23,145.38-3,743.42

Finding the Fourth Proportional to 15,430.21, 23,145.38 and 3,743.42

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Solution

The fourth proportional to 15,430.21, 23,145.38 and 3,743.42 is: 5,615.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.21 : 23,145.38 = 3,743.42 : x
  2. Step 2: Convert to fraction form
    15,430.21/23,145.38 = 3,743.42/x
  3. Step 3: Cross multiply
    15,430.21x = 23,145.38 × 3,743.42
  4. Step 4: Simplify right side
    15,430.21x = 86,642,878.40
  5. Step 5: Solve for x
    x = 86,642,878.40/15,430.21
  6. Step 6: Final answer
    x = 5,615.15

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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.