Home / 21,483.21-29,646.76-11,923.14

Finding the Fourth Proportional to 21,483.21, 29,646.76 and 11,923.14

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Solution

The fourth proportional to 21,483.21, 29,646.76 and 11,923.14 is: 16,453.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,483.21 : 29,646.76 = 11,923.14 : x
  2. Step 2: Convert to fraction form
    21,483.21/29,646.76 = 11,923.14/x
  3. Step 3: Cross multiply
    21,483.21x = 29,646.76 × 11,923.14
  4. Step 4: Simplify right side
    21,483.21x = 353,482,365.30
  5. Step 5: Solve for x
    x = 353,482,365.30/21,483.21
  6. Step 6: Final answer
    x = 16,453.89

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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.