Home / 30,168.20-45,265.26-21,459.08

Finding the Fourth Proportional to 30,168.20, 45,265.26 and 21,459.08

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Solution

The fourth proportional to 30,168.20, 45,265.26 and 21,459.08 is: 32,197.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.20 : 45,265.26 = 21,459.08 : x
  2. Step 2: Convert to fraction form
    30,168.20/45,265.26 = 21,459.08/x
  3. Step 3: Cross multiply
    30,168.20x = 45,265.26 × 21,459.08
  4. Step 4: Simplify right side
    30,168.20x = 971,350,835.56
  5. Step 5: Solve for x
    x = 971,350,835.56/30,168.20
  6. Step 6: Final answer
    x = 32,197.84

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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.