Home / 21,946.71-32,938.50-20,562.75

Finding the Fourth Proportional to 21,946.71, 32,938.50 and 20,562.75

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Solution

The fourth proportional to 21,946.71, 32,938.50 and 20,562.75 is: 30,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,946.71 : 32,938.50 = 20,562.75 : x
  2. Step 2: Convert to fraction form
    21,946.71/32,938.50 = 20,562.75/x
  3. Step 3: Cross multiply
    21,946.71x = 32,938.50 × 20,562.75
  4. Step 4: Simplify right side
    21,946.71x = 677,306,140.88
  5. Step 5: Solve for x
    x = 677,306,140.88/21,946.71
  6. Step 6: Final answer
    x = 30,861.40

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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.