Home / 21,741.25-30,002.99-12,671.98

Finding the Fourth Proportional to 21,741.25, 30,002.99 and 12,671.98

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Solution

The fourth proportional to 21,741.25, 30,002.99 and 12,671.98 is: 17,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,741.25 : 30,002.99 = 12,671.98 : x
  2. Step 2: Convert to fraction form
    21,741.25/30,002.99 = 12,671.98/x
  3. Step 3: Cross multiply
    21,741.25x = 30,002.99 × 12,671.98
  4. Step 4: Simplify right side
    21,741.25x = 380,197,325.91
  5. Step 5: Solve for x
    x = 380,197,325.91/21,741.25
  6. Step 6: Final answer
    x = 17,487.37

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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.