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Finding the Fourth Proportional to 20,588.69, 30,898.69 and 14,260.03

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Solution

The fourth proportional to 20,588.69, 30,898.69 and 14,260.03 is: 21,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.69 : 30,898.69 = 14,260.03 : x
  2. Step 2: Convert to fraction form
    20,588.69/30,898.69 = 14,260.03/x
  3. Step 3: Cross multiply
    20,588.69x = 30,898.69 × 14,260.03
  4. Step 4: Simplify right side
    20,588.69x = 440,616,133.46
  5. Step 5: Solve for x
    x = 440,616,133.46/20,588.69
  6. Step 6: Final answer
    x = 21,400.88

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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.