Home / 20,437.96-30,665.60-13,050.76

Finding the Fourth Proportional to 20,437.96, 30,665.60 and 13,050.76

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Solution

The fourth proportional to 20,437.96, 30,665.60 and 13,050.76 is: 19,581.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.96 : 30,665.60 = 13,050.76 : x
  2. Step 2: Convert to fraction form
    20,437.96/30,665.60 = 13,050.76/x
  3. Step 3: Cross multiply
    20,437.96x = 30,665.60 × 13,050.76
  4. Step 4: Simplify right side
    20,437.96x = 400,209,385.86
  5. Step 5: Solve for x
    x = 400,209,385.86/20,437.96
  6. Step 6: Final answer
    x = 19,581.67

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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.