Home / 21,402.14-29,533.34-11,968.88

Finding the Fourth Proportional to 21,402.14, 29,533.34 and 11,968.88

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Solution

The fourth proportional to 21,402.14, 29,533.34 and 11,968.88 is: 16,516.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,402.14 : 29,533.34 = 11,968.88 : x
  2. Step 2: Convert to fraction form
    21,402.14/29,533.34 = 11,968.88/x
  3. Step 3: Cross multiply
    21,402.14x = 29,533.34 × 11,968.88
  4. Step 4: Simplify right side
    21,402.14x = 353,480,884.71
  5. Step 5: Solve for x
    x = 353,480,884.71/21,402.14
  6. Step 6: Final answer
    x = 16,516.15

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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.