Home / 28,931.32-43,367.22-13,147.33

Finding the Fourth Proportional to 28,931.32, 43,367.22 and 13,147.33

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Solution

The fourth proportional to 28,931.32, 43,367.22 and 13,147.33 is: 19,707.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.32 : 43,367.22 = 13,147.33 : x
  2. Step 2: Convert to fraction form
    28,931.32/43,367.22 = 13,147.33/x
  3. Step 3: Cross multiply
    28,931.32x = 43,367.22 × 13,147.33
  4. Step 4: Simplify right side
    28,931.32x = 570,163,086.79
  5. Step 5: Solve for x
    x = 570,163,086.79/28,931.32
  6. Step 6: Final answer
    x = 19,707.47

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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.