Home / 21,846.72-30,148.48-12,415.04

Finding the Fourth Proportional to 21,846.72, 30,148.48 and 12,415.04

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Solution

The fourth proportional to 21,846.72, 30,148.48 and 12,415.04 is: 17,132.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,846.72 : 30,148.48 = 12,415.04 : x
  2. Step 2: Convert to fraction form
    21,846.72/30,148.48 = 12,415.04/x
  3. Step 3: Cross multiply
    21,846.72x = 30,148.48 × 12,415.04
  4. Step 4: Simplify right side
    21,846.72x = 374,294,585.14
  5. Step 5: Solve for x
    x = 374,294,585.14/21,846.72
  6. Step 6: Final answer
    x = 17,132.76

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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.