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Finding the Fourth Proportional to 14,273.70, 21,410.55 and 13,982.10

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Solution

The fourth proportional to 14,273.70, 21,410.55 and 13,982.10 is: 20,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,273.70 : 21,410.55 = 13,982.10 : x
  2. Step 2: Convert to fraction form
    14,273.70/21,410.55 = 13,982.10/x
  3. Step 3: Cross multiply
    14,273.70x = 21,410.55 × 13,982.10
  4. Step 4: Simplify right side
    14,273.70x = 299,364,451.16
  5. Step 5: Solve for x
    x = 299,364,451.16/14,273.70
  6. Step 6: Final answer
    x = 20,973.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.