Home / 21,774.17-30,054.76-14,221.64

Finding the Fourth Proportional to 21,774.17, 30,054.76 and 14,221.64

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Solution

The fourth proportional to 21,774.17, 30,054.76 and 14,221.64 is: 19,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,774.17 : 30,054.76 = 14,221.64 : x
  2. Step 2: Convert to fraction form
    21,774.17/30,054.76 = 14,221.64/x
  3. Step 3: Cross multiply
    21,774.17x = 30,054.76 × 14,221.64
  4. Step 4: Simplify right side
    21,774.17x = 427,428,016.59
  5. Step 5: Solve for x
    x = 427,428,016.59/21,774.17
  6. Step 6: Final answer
    x = 19,630.05

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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.