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Finding the Fourth Proportional to 14,243.60, 21,365.40 and 14,000.60

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Solution

The fourth proportional to 14,243.60, 21,365.40 and 14,000.60 is: 21,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.60 : 21,365.40 = 14,000.60 : x
  2. Step 2: Convert to fraction form
    14,243.60/21,365.40 = 14,000.60/x
  3. Step 3: Cross multiply
    14,243.60x = 21,365.40 × 14,000.60
  4. Step 4: Simplify right side
    14,243.60x = 299,128,419.24
  5. Step 5: Solve for x
    x = 299,128,419.24/14,243.60
  6. Step 6: Final answer
    x = 21,000.90

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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.