Home / 21,532.08-29,714.61-12,100.64

Finding the Fourth Proportional to 21,532.08, 29,714.61 and 12,100.64

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Solution

The fourth proportional to 21,532.08, 29,714.61 and 12,100.64 is: 16,699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,532.08 : 29,714.61 = 12,100.64 : x
  2. Step 2: Convert to fraction form
    21,532.08/29,714.61 = 12,100.64/x
  3. Step 3: Cross multiply
    21,532.08x = 29,714.61 × 12,100.64
  4. Step 4: Simplify right side
    21,532.08x = 359,565,798.35
  5. Step 5: Solve for x
    x = 359,565,798.35/21,532.08
  6. Step 6: Final answer
    x = 16,699.07

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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.