Home / 21,530.13-29,714.36-12,098.69

Finding the Fourth Proportional to 21,530.13, 29,714.36 and 12,098.69

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Solution

The fourth proportional to 21,530.13, 29,714.36 and 12,098.69 is: 16,697.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530.13 : 29,714.36 = 12,098.69 : x
  2. Step 2: Convert to fraction form
    21,530.13/29,714.36 = 12,098.69/x
  3. Step 3: Cross multiply
    21,530.13x = 29,714.36 × 12,098.69
  4. Step 4: Simplify right side
    21,530.13x = 359,504,830.19
  5. Step 5: Solve for x
    x = 359,504,830.19/21,530.13
  6. Step 6: Final answer
    x = 16,697.75

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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.