Home / 21,601.64-29,810.24-12,170.28

Finding the Fourth Proportional to 21,601.64, 29,810.24 and 12,170.28

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Solution

The fourth proportional to 21,601.64, 29,810.24 and 12,170.28 is: 16,794.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.64 : 29,810.24 = 12,170.28 : x
  2. Step 2: Convert to fraction form
    21,601.64/29,810.24 = 12,170.28/x
  3. Step 3: Cross multiply
    21,601.64x = 29,810.24 × 12,170.28
  4. Step 4: Simplify right side
    21,601.64x = 362,798,967.67
  5. Step 5: Solve for x
    x = 362,798,967.67/21,601.64
  6. Step 6: Final answer
    x = 16,794.97

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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.