Home / 21,022.64-29,010.19-11,946.81

Finding the Fourth Proportional to 21,022.64, 29,010.19 and 11,946.81

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Solution

The fourth proportional to 21,022.64, 29,010.19 and 11,946.81 is: 16,486.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.64 : 29,010.19 = 11,946.81 : x
  2. Step 2: Convert to fraction form
    21,022.64/29,010.19 = 11,946.81/x
  3. Step 3: Cross multiply
    21,022.64x = 29,010.19 × 11,946.81
  4. Step 4: Simplify right side
    21,022.64x = 346,579,362.92
  5. Step 5: Solve for x
    x = 346,579,362.92/21,022.64
  6. Step 6: Final answer
    x = 16,486.01

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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.