Home / 21,507.40-32,270.60-8,360.80

Finding the Fourth Proportional to 21,507.40, 32,270.60 and 8,360.80

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Solution

The fourth proportional to 21,507.40, 32,270.60 and 8,360.80 is: 12,544.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,507.40 : 32,270.60 = 8,360.80 : x
  2. Step 2: Convert to fraction form
    21,507.40/32,270.60 = 8,360.80/x
  3. Step 3: Cross multiply
    21,507.40x = 32,270.60 × 8,360.80
  4. Step 4: Simplify right side
    21,507.40x = 269,808,032.48
  5. Step 5: Solve for x
    x = 269,808,032.48/21,507.40
  6. Step 6: Final answer
    x = 12,544.89

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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.