Home / 21,831.71-32,720.16-9,337.04

Finding the Fourth Proportional to 21,831.71, 32,720.16 and 9,337.04

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Solution

The fourth proportional to 21,831.71, 32,720.16 and 9,337.04 is: 13,993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,831.71 : 32,720.16 = 9,337.04 : x
  2. Step 2: Convert to fraction form
    21,831.71/32,720.16 = 9,337.04/x
  3. Step 3: Cross multiply
    21,831.71x = 32,720.16 × 9,337.04
  4. Step 4: Simplify right side
    21,831.71x = 305,509,442.73
  5. Step 5: Solve for x
    x = 305,509,442.73/21,831.71
  6. Step 6: Final answer
    x = 13,993.84

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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.