Home / 21,346.40-32,019.60-13,589.60

Finding the Fourth Proportional to 21,346.40, 32,019.60 and 13,589.60

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Solution

The fourth proportional to 21,346.40, 32,019.60 and 13,589.60 is: 20,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.40 : 32,019.60 = 13,589.60 : x
  2. Step 2: Convert to fraction form
    21,346.40/32,019.60 = 13,589.60/x
  3. Step 3: Cross multiply
    21,346.40x = 32,019.60 × 13,589.60
  4. Step 4: Simplify right side
    21,346.40x = 435,133,556.16
  5. Step 5: Solve for x
    x = 435,133,556.16/21,346.40
  6. Step 6: Final answer
    x = 20,384.40

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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.