Home / 21,345.24-29,453.71-11,914.20

Finding the Fourth Proportional to 21,345.24, 29,453.71 and 11,914.20

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Solution

The fourth proportional to 21,345.24, 29,453.71 and 11,914.20 is: 16,440.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,345.24 : 29,453.71 = 11,914.20 : x
  2. Step 2: Convert to fraction form
    21,345.24/29,453.71 = 11,914.20/x
  3. Step 3: Cross multiply
    21,345.24x = 29,453.71 × 11,914.20
  4. Step 4: Simplify right side
    21,345.24x = 350,917,214.63
  5. Step 5: Solve for x
    x = 350,917,214.63/21,345.24
  6. Step 6: Final answer
    x = 16,440.07

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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.