Home / 21,604.47-29,818.04-12,651.45

Finding the Fourth Proportional to 21,604.47, 29,818.04 and 12,651.45

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Solution

The fourth proportional to 21,604.47, 29,818.04 and 12,651.45 is: 17,461.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,604.47 : 29,818.04 = 12,651.45 : x
  2. Step 2: Convert to fraction form
    21,604.47/29,818.04 = 12,651.45/x
  3. Step 3: Cross multiply
    21,604.47x = 29,818.04 × 12,651.45
  4. Step 4: Simplify right side
    21,604.47x = 377,241,378.90
  5. Step 5: Solve for x
    x = 377,241,378.90/21,604.47
  6. Step 6: Final answer
    x = 17,461.27

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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.