Home / 20,296.86-28,018.28-12,341.62

Finding the Fourth Proportional to 20,296.86, 28,018.28 and 12,341.62

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Solution

The fourth proportional to 20,296.86, 28,018.28 and 12,341.62 is: 17,036.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.86 : 28,018.28 = 12,341.62 : x
  2. Step 2: Convert to fraction form
    20,296.86/28,018.28 = 12,341.62/x
  3. Step 3: Cross multiply
    20,296.86x = 28,018.28 × 12,341.62
  4. Step 4: Simplify right side
    20,296.86x = 345,790,964.81
  5. Step 5: Solve for x
    x = 345,790,964.81/20,296.86
  6. Step 6: Final answer
    x = 17,036.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.