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Finding the Fourth Proportional to 21,360.60, 32,040.60 and 9,673.80

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Solution

The fourth proportional to 21,360.60, 32,040.60 and 9,673.80 is: 14,510.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360.60 : 32,040.60 = 9,673.80 : x
  2. Step 2: Convert to fraction form
    21,360.60/32,040.60 = 9,673.80/x
  3. Step 3: Cross multiply
    21,360.60x = 32,040.60 × 9,673.80
  4. Step 4: Simplify right side
    21,360.60x = 309,954,356.28
  5. Step 5: Solve for x
    x = 309,954,356.28/21,360.60
  6. Step 6: Final answer
    x = 14,510.56

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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.