Home / 20,416.26-30,585.43-13,831.14

Finding the Fourth Proportional to 20,416.26, 30,585.43 and 13,831.14

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Solution

The fourth proportional to 20,416.26, 30,585.43 and 13,831.14 is: 20,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.26 : 30,585.43 = 13,831.14 : x
  2. Step 2: Convert to fraction form
    20,416.26/30,585.43 = 13,831.14/x
  3. Step 3: Cross multiply
    20,416.26x = 30,585.43 × 13,831.14
  4. Step 4: Simplify right side
    20,416.26x = 423,031,364.29
  5. Step 5: Solve for x
    x = 423,031,364.29/20,416.26
  6. Step 6: Final answer
    x = 20,720.32

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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.