Home / 21,366.47-29,500.31-13,831.04

Finding the Fourth Proportional to 21,366.47, 29,500.31 and 13,831.04

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Solution

The fourth proportional to 21,366.47, 29,500.31 and 13,831.04 is: 19,096.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366.47 : 29,500.31 = 13,831.04 : x
  2. Step 2: Convert to fraction form
    21,366.47/29,500.31 = 13,831.04/x
  3. Step 3: Cross multiply
    21,366.47x = 29,500.31 × 13,831.04
  4. Step 4: Simplify right side
    21,366.47x = 408,019,967.62
  5. Step 5: Solve for x
    x = 408,019,967.62/21,366.47
  6. Step 6: Final answer
    x = 19,096.27

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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.