Home / 21,896.72-30,206.00-13,827.45

Finding the Fourth Proportional to 21,896.72, 30,206.00 and 13,827.45

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Solution

The fourth proportional to 21,896.72, 30,206.00 and 13,827.45 is: 19,074.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,896.72 : 30,206.00 = 13,827.45 : x
  2. Step 2: Convert to fraction form
    21,896.72/30,206.00 = 13,827.45/x
  3. Step 3: Cross multiply
    21,896.72x = 30,206.00 × 13,827.45
  4. Step 4: Simplify right side
    21,896.72x = 417,671,838.24
  5. Step 5: Solve for x
    x = 417,671,838.24/21,896.72
  6. Step 6: Final answer
    x = 19,074.63

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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.