Home / 21,409.80-32,114.70-13,536.60

Finding the Fourth Proportional to 21,409.80, 32,114.70 and 13,536.60

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Solution

The fourth proportional to 21,409.80, 32,114.70 and 13,536.60 is: 20,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.80 : 32,114.70 = 13,536.60 : x
  2. Step 2: Convert to fraction form
    21,409.80/32,114.70 = 13,536.60/x
  3. Step 3: Cross multiply
    21,409.80x = 32,114.70 × 13,536.60
  4. Step 4: Simplify right side
    21,409.80x = 434,723,848.02
  5. Step 5: Solve for x
    x = 434,723,848.02/21,409.80
  6. Step 6: Final answer
    x = 20,304.90

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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.