Home / 30,831.21-46,246.80-28,423.68

Finding the Fourth Proportional to 30,831.21, 46,246.80 and 28,423.68

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Solution

The fourth proportional to 30,831.21, 46,246.80 and 28,423.68 is: 42,635.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.21 : 46,246.80 = 28,423.68 : x
  2. Step 2: Convert to fraction form
    30,831.21/46,246.80 = 28,423.68/x
  3. Step 3: Cross multiply
    30,831.21x = 46,246.80 × 28,423.68
  4. Step 4: Simplify right side
    30,831.21x = 1,314,504,244.22
  5. Step 5: Solve for x
    x = 1,314,504,244.22/30,831.21
  6. Step 6: Final answer
    x = 42,635.51

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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.