Home / 28,066.15-38,730.32-16,729.80

Finding the Fourth Proportional to 28,066.15, 38,730.32 and 16,729.80

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Solution

The fourth proportional to 28,066.15, 38,730.32 and 16,729.80 is: 23,086.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.15 : 38,730.32 = 16,729.80 : x
  2. Step 2: Convert to fraction form
    28,066.15/38,730.32 = 16,729.80/x
  3. Step 3: Cross multiply
    28,066.15x = 38,730.32 × 16,729.80
  4. Step 4: Simplify right side
    28,066.15x = 647,950,707.81
  5. Step 5: Solve for x
    x = 647,950,707.81/28,066.15
  6. Step 6: Final answer
    x = 23,086.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.