Home / 28,831.58-43,231.67-13,018.08

Finding the Fourth Proportional to 28,831.58, 43,231.67 and 13,018.08

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Solution

The fourth proportional to 28,831.58, 43,231.67 and 13,018.08 is: 19,520.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.58 : 43,231.67 = 13,018.08 : x
  2. Step 2: Convert to fraction form
    28,831.58/43,231.67 = 13,018.08/x
  3. Step 3: Cross multiply
    28,831.58x = 43,231.67 × 13,018.08
  4. Step 4: Simplify right side
    28,831.58x = 562,793,338.59
  5. Step 5: Solve for x
    x = 562,793,338.59/28,831.58
  6. Step 6: Final answer
    x = 19,520.03

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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.