Home / 21,527.76-29,707.48-11,968.22

Finding the Fourth Proportional to 21,527.76, 29,707.48 and 11,968.22

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Solution

The fourth proportional to 21,527.76, 29,707.48 and 11,968.22 is: 16,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,527.76 : 29,707.48 = 11,968.22 : x
  2. Step 2: Convert to fraction form
    21,527.76/29,707.48 = 11,968.22/x
  3. Step 3: Cross multiply
    21,527.76x = 29,707.48 × 11,968.22
  4. Step 4: Simplify right side
    21,527.76x = 355,545,656.29
  5. Step 5: Solve for x
    x = 355,545,656.29/21,527.76
  6. Step 6: Final answer
    x = 16,515.68

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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.