Home / 21,708.90-29,969.46-14,166.18

Finding the Fourth Proportional to 21,708.90, 29,969.46 and 14,166.18

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Solution

The fourth proportional to 21,708.90, 29,969.46 and 14,166.18 is: 19,556.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708.90 : 29,969.46 = 14,166.18 : x
  2. Step 2: Convert to fraction form
    21,708.90/29,969.46 = 14,166.18/x
  3. Step 3: Cross multiply
    21,708.90x = 29,969.46 × 14,166.18
  4. Step 4: Simplify right side
    21,708.90x = 424,552,764.86
  5. Step 5: Solve for x
    x = 424,552,764.86/21,708.90
  6. Step 6: Final answer
    x = 19,556.62

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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.