Home / 18,720.32-25,831.84-10,336.32

Finding the Fourth Proportional to 18,720.32, 25,831.84 and 10,336.32

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Solution

The fourth proportional to 18,720.32, 25,831.84 and 10,336.32 is: 14,262.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.32 : 25,831.84 = 10,336.32 : x
  2. Step 2: Convert to fraction form
    18,720.32/25,831.84 = 10,336.32/x
  3. Step 3: Cross multiply
    18,720.32x = 25,831.84 × 10,336.32
  4. Step 4: Simplify right side
    18,720.32x = 267,006,164.43
  5. Step 5: Solve for x
    x = 267,006,164.43/18,720.32
  6. Step 6: Final answer
    x = 14,262.91

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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.