Home / 20,225.32-30,337.68-12,330.16

Finding the Fourth Proportional to 20,225.32, 30,337.68 and 12,330.16

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Solution

The fourth proportional to 20,225.32, 30,337.68 and 12,330.16 is: 18,495.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.32 : 30,337.68 = 12,330.16 : x
  2. Step 2: Convert to fraction form
    20,225.32/30,337.68 = 12,330.16/x
  3. Step 3: Cross multiply
    20,225.32x = 30,337.68 × 12,330.16
  4. Step 4: Simplify right side
    20,225.32x = 374,068,448.43
  5. Step 5: Solve for x
    x = 374,068,448.43/20,225.32
  6. Step 6: Final answer
    x = 18,495.06

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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.