Home / 21,157.58-29,197.80-11,597.36

Finding the Fourth Proportional to 21,157.58, 29,197.80 and 11,597.36

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Solution

The fourth proportional to 21,157.58, 29,197.80 and 11,597.36 is: 16,004.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,157.58 : 29,197.80 = 11,597.36 : x
  2. Step 2: Convert to fraction form
    21,157.58/29,197.80 = 11,597.36/x
  3. Step 3: Cross multiply
    21,157.58x = 29,197.80 × 11,597.36
  4. Step 4: Simplify right side
    21,157.58x = 338,617,397.81
  5. Step 5: Solve for x
    x = 338,617,397.81/21,157.58
  6. Step 6: Final answer
    x = 16,004.54

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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.