Home / 21,632.86-29,836.92-15,684.22

Finding the Fourth Proportional to 21,632.86, 29,836.92 and 15,684.22

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Solution

The fourth proportional to 21,632.86, 29,836.92 and 15,684.22 is: 21,632.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632.86 : 29,836.92 = 15,684.22 : x
  2. Step 2: Convert to fraction form
    21,632.86/29,836.92 = 15,684.22/x
  3. Step 3: Cross multiply
    21,632.86x = 29,836.92 × 15,684.22
  4. Step 4: Simplify right side
    21,632.86x = 467,968,817.40
  5. Step 5: Solve for x
    x = 467,968,817.40/21,632.86
  6. Step 6: Final answer
    x = 21,632.31

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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.