Home / 28,066.86-38,714.94-16,728.72

Finding the Fourth Proportional to 28,066.86, 38,714.94 and 16,728.72

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Solution

The fourth proportional to 28,066.86, 38,714.94 and 16,728.72 is: 23,075.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.86 : 38,714.94 = 16,728.72 : x
  2. Step 2: Convert to fraction form
    28,066.86/38,714.94 = 16,728.72/x
  3. Step 3: Cross multiply
    28,066.86x = 38,714.94 × 16,728.72
  4. Step 4: Simplify right side
    28,066.86x = 647,651,391.08
  5. Step 5: Solve for x
    x = 647,651,391.08/28,066.86
  6. Step 6: Final answer
    x = 23,075.31

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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.