Home / 21,567.96-29,758.86-12,133.08

Finding the Fourth Proportional to 21,567.96, 29,758.86 and 12,133.08

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Solution

The fourth proportional to 21,567.96, 29,758.86 and 12,133.08 is: 16,740.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.96 : 29,758.86 = 12,133.08 : x
  2. Step 2: Convert to fraction form
    21,567.96/29,758.86 = 12,133.08/x
  3. Step 3: Cross multiply
    21,567.96x = 29,758.86 × 12,133.08
  4. Step 4: Simplify right side
    21,567.96x = 361,066,629.09
  5. Step 5: Solve for x
    x = 361,066,629.09/21,567.96
  6. Step 6: Final answer
    x = 16,740.88

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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.