Home / 21,473.52-29,633.79-12,974.46

Finding the Fourth Proportional to 21,473.52, 29,633.79 and 12,974.46

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Solution

The fourth proportional to 21,473.52, 29,633.79 and 12,974.46 is: 17,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,473.52 : 29,633.79 = 12,974.46 : x
  2. Step 2: Convert to fraction form
    21,473.52/29,633.79 = 12,974.46/x
  3. Step 3: Cross multiply
    21,473.52x = 29,633.79 × 12,974.46
  4. Step 4: Simplify right side
    21,473.52x = 384,482,423.00
  5. Step 5: Solve for x
    x = 384,482,423.00/21,473.52
  6. Step 6: Final answer
    x = 17,904.96

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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.