Home / 19,615.75-29,428.62-5,764.75

Finding the Fourth Proportional to 19,615.75, 29,428.62 and 5,764.75

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Solution

The fourth proportional to 19,615.75, 29,428.62 and 5,764.75 is: 8,648.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.75 : 29,428.62 = 5,764.75 : x
  2. Step 2: Convert to fraction form
    19,615.75/29,428.62 = 5,764.75/x
  3. Step 3: Cross multiply
    19,615.75x = 29,428.62 × 5,764.75
  4. Step 4: Simplify right side
    19,615.75x = 169,648,637.15
  5. Step 5: Solve for x
    x = 169,648,637.15/19,615.75
  6. Step 6: Final answer
    x = 8,648.59

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1.5x scale

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.