Home / 21,590.76-29,796.30-12,160.02

Finding the Fourth Proportional to 21,590.76, 29,796.30 and 12,160.02

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Solution

The fourth proportional to 21,590.76, 29,796.30 and 12,160.02 is: 16,781.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590.76 : 29,796.30 = 12,160.02 : x
  2. Step 2: Convert to fraction form
    21,590.76/29,796.30 = 12,160.02/x
  3. Step 3: Cross multiply
    21,590.76x = 29,796.30 × 12,160.02
  4. Step 4: Simplify right side
    21,590.76x = 362,323,603.93
  5. Step 5: Solve for x
    x = 362,323,603.93/21,590.76
  6. Step 6: Final answer
    x = 16,781.42

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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.