Home / 20,677.02-28,534.59-12,714.54

Finding the Fourth Proportional to 20,677.02, 28,534.59 and 12,714.54

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Solution

The fourth proportional to 20,677.02, 28,534.59 and 12,714.54 is: 17,546.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.02 : 28,534.59 = 12,714.54 : x
  2. Step 2: Convert to fraction form
    20,677.02/28,534.59 = 12,714.54/x
  3. Step 3: Cross multiply
    20,677.02x = 28,534.59 × 12,714.54
  4. Step 4: Simplify right side
    20,677.02x = 362,804,185.94
  5. Step 5: Solve for x
    x = 362,804,185.94/20,677.02
  6. Step 6: Final answer
    x = 17,546.25

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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.