Home / 21,449.77-29,600.64-13,066.27

Finding the Fourth Proportional to 21,449.77, 29,600.64 and 13,066.27

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Solution

The fourth proportional to 21,449.77, 29,600.64 and 13,066.27 is: 18,031.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.77 : 29,600.64 = 13,066.27 : x
  2. Step 2: Convert to fraction form
    21,449.77/29,600.64 = 13,066.27/x
  3. Step 3: Cross multiply
    21,449.77x = 29,600.64 × 13,066.27
  4. Step 4: Simplify right side
    21,449.77x = 386,769,880.41
  5. Step 5: Solve for x
    x = 386,769,880.41/21,449.77
  6. Step 6: Final answer
    x = 18,031.43

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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.