Home / 21,230.73-29,303.24-13,166.17

Finding the Fourth Proportional to 21,230.73, 29,303.24 and 13,166.17

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Solution

The fourth proportional to 21,230.73, 29,303.24 and 13,166.17 is: 18,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.73 : 29,303.24 = 13,166.17 : x
  2. Step 2: Convert to fraction form
    21,230.73/29,303.24 = 13,166.17/x
  3. Step 3: Cross multiply
    21,230.73x = 29,303.24 × 13,166.17
  4. Step 4: Simplify right side
    21,230.73x = 385,811,300.30
  5. Step 5: Solve for x
    x = 385,811,300.30/21,230.73
  6. Step 6: Final answer
    x = 18,172.30

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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.