Home / 21,367.64-29,486.05-11,807.31

Finding the Fourth Proportional to 21,367.64, 29,486.05 and 11,807.31

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Solution

The fourth proportional to 21,367.64, 29,486.05 and 11,807.31 is: 16,293.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.64 : 29,486.05 = 11,807.31 : x
  2. Step 2: Convert to fraction form
    21,367.64/29,486.05 = 11,807.31/x
  3. Step 3: Cross multiply
    21,367.64x = 29,486.05 × 11,807.31
  4. Step 4: Simplify right side
    21,367.64x = 348,150,903.51
  5. Step 5: Solve for x
    x = 348,150,903.51/21,367.64
  6. Step 6: Final answer
    x = 16,293.37

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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.