Home / 21,482.96-32,220.60-13,668.56

Finding the Fourth Proportional to 21,482.96, 32,220.60 and 13,668.56

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Solution

The fourth proportional to 21,482.96, 32,220.60 and 13,668.56 is: 20,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.96 : 32,220.60 = 13,668.56 : x
  2. Step 2: Convert to fraction form
    21,482.96/32,220.60 = 13,668.56/x
  3. Step 3: Cross multiply
    21,482.96x = 32,220.60 × 13,668.56
  4. Step 4: Simplify right side
    21,482.96x = 440,409,204.34
  5. Step 5: Solve for x
    x = 440,409,204.34/21,482.96
  6. Step 6: Final answer
    x = 20,500.40

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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.