Home / 30,831.12-46,272.60-13,314.32

Finding the Fourth Proportional to 30,831.12, 46,272.60 and 13,314.32

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Solution

The fourth proportional to 30,831.12, 46,272.60 and 13,314.32 is: 19,982.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.12 : 46,272.60 = 13,314.32 : x
  2. Step 2: Convert to fraction form
    30,831.12/46,272.60 = 13,314.32/x
  3. Step 3: Cross multiply
    30,831.12x = 46,272.60 × 13,314.32
  4. Step 4: Simplify right side
    30,831.12x = 616,088,203.63
  5. Step 5: Solve for x
    x = 616,088,203.63/30,831.12
  6. Step 6: Final answer
    x = 19,982.67

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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.