Home / 21,409.40-32,114.10-13,536.20

Finding the Fourth Proportional to 21,409.40, 32,114.10 and 13,536.20

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Solution

The fourth proportional to 21,409.40, 32,114.10 and 13,536.20 is: 20,304.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.40 : 32,114.10 = 13,536.20 : x
  2. Step 2: Convert to fraction form
    21,409.40/32,114.10 = 13,536.20/x
  3. Step 3: Cross multiply
    21,409.40x = 32,114.10 × 13,536.20
  4. Step 4: Simplify right side
    21,409.40x = 434,702,880.42
  5. Step 5: Solve for x
    x = 434,702,880.42/21,409.40
  6. Step 6: Final answer
    x = 20,304.30

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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.