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Finding the Fourth Proportional to 21,592.40, 32,308.41 and 18,947.54

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Solution

The fourth proportional to 21,592.40, 32,308.41 and 18,947.54 is: 28,350.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,592.40 : 32,308.41 = 18,947.54 : x
  2. Step 2: Convert to fraction form
    21,592.40/32,308.41 = 18,947.54/x
  3. Step 3: Cross multiply
    21,592.40x = 32,308.41 × 18,947.54
  4. Step 4: Simplify right side
    21,592.40x = 612,164,890.81
  5. Step 5: Solve for x
    x = 612,164,890.81/21,592.40
  6. Step 6: Final answer
    x = 28,350.94

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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.