Home / 21,361.96-29,437.86-15,382.34

Finding the Fourth Proportional to 21,361.96, 29,437.86 and 15,382.34

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Solution

The fourth proportional to 21,361.96, 29,437.86 and 15,382.34 is: 21,197.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361.96 : 29,437.86 = 15,382.34 : x
  2. Step 2: Convert to fraction form
    21,361.96/29,437.86 = 15,382.34/x
  3. Step 3: Cross multiply
    21,361.96x = 29,437.86 × 15,382.34
  4. Step 4: Simplify right side
    21,361.96x = 452,823,192.28
  5. Step 5: Solve for x
    x = 452,823,192.28/21,361.96
  6. Step 6: Final answer
    x = 21,197.64

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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.