Home / 21,895.40-30,206.70-16,166.58

Finding the Fourth Proportional to 21,895.40, 30,206.70 and 16,166.58

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Solution

The fourth proportional to 21,895.40, 30,206.70 and 16,166.58 is: 22,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.40 : 30,206.70 = 16,166.58 : x
  2. Step 2: Convert to fraction form
    21,895.40/30,206.70 = 16,166.58/x
  3. Step 3: Cross multiply
    21,895.40x = 30,206.70 × 16,166.58
  4. Step 4: Simplify right side
    21,895.40x = 488,339,032.09
  5. Step 5: Solve for x
    x = 488,339,032.09/21,895.40
  6. Step 6: Final answer
    x = 22,303.28

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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.