Home / 30,831.29-46,310.06-20,316.39

Finding the Fourth Proportional to 30,831.29, 46,310.06 and 20,316.39

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Solution

The fourth proportional to 30,831.29, 46,310.06 and 20,316.39 is: 30,516.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.29 : 46,310.06 = 20,316.39 : x
  2. Step 2: Convert to fraction form
    30,831.29/46,310.06 = 20,316.39/x
  3. Step 3: Cross multiply
    30,831.29x = 46,310.06 × 20,316.39
  4. Step 4: Simplify right side
    30,831.29x = 940,853,239.88
  5. Step 5: Solve for x
    x = 940,853,239.88/30,831.29
  6. Step 6: Final answer
    x = 30,516.18

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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.