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Finding the Fourth Proportional to 20,594.70, 30,892.05 and 19,212.30

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Solution

The fourth proportional to 20,594.70, 30,892.05 and 19,212.30 is: 28,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.70 : 30,892.05 = 19,212.30 : x
  2. Step 2: Convert to fraction form
    20,594.70/30,892.05 = 19,212.30/x
  3. Step 3: Cross multiply
    20,594.70x = 30,892.05 × 19,212.30
  4. Step 4: Simplify right side
    20,594.70x = 593,507,332.22
  5. Step 5: Solve for x
    x = 593,507,332.22/20,594.70
  6. Step 6: Final answer
    x = 28,818.45

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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.