Home / 21,548.64-29,733.66-12,116.64

Finding the Fourth Proportional to 21,548.64, 29,733.66 and 12,116.64

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Solution

The fourth proportional to 21,548.64, 29,733.66 and 12,116.64 is: 16,719.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.64 : 29,733.66 = 12,116.64 : x
  2. Step 2: Convert to fraction form
    21,548.64/29,733.66 = 12,116.64/x
  3. Step 3: Cross multiply
    21,548.64x = 29,733.66 × 12,116.64
  4. Step 4: Simplify right side
    21,548.64x = 360,272,054.10
  5. Step 5: Solve for x
    x = 360,272,054.10/21,548.64
  6. Step 6: Final answer
    x = 16,719.02

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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.