Home / 21,929.64-32,831.10-13,584.39

Finding the Fourth Proportional to 21,929.64, 32,831.10 and 13,584.39

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Solution

The fourth proportional to 21,929.64, 32,831.10 and 13,584.39 is: 20,337.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.64 : 32,831.10 = 13,584.39 : x
  2. Step 2: Convert to fraction form
    21,929.64/32,831.10 = 13,584.39/x
  3. Step 3: Cross multiply
    21,929.64x = 32,831.10 × 13,584.39
  4. Step 4: Simplify right side
    21,929.64x = 445,990,466.53
  5. Step 5: Solve for x
    x = 445,990,466.53/21,929.64
  6. Step 6: Final answer
    x = 20,337.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.