Home / 21,831.57-32,719.95-9,336.90

Finding the Fourth Proportional to 21,831.57, 32,719.95 and 9,336.90

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Solution

The fourth proportional to 21,831.57, 32,719.95 and 9,336.90 is: 13,993.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,831.57 : 32,719.95 = 9,336.90 : x
  2. Step 2: Convert to fraction form
    21,831.57/32,719.95 = 9,336.90/x
  3. Step 3: Cross multiply
    21,831.57x = 32,719.95 × 9,336.90
  4. Step 4: Simplify right side
    21,831.57x = 305,502,944.96
  5. Step 5: Solve for x
    x = 305,502,944.96/21,831.57
  6. Step 6: Final answer
    x = 13,993.63

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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.