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Finding the Fourth Proportional to 37,419.76, 51,639.01 and 20,652.76

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Solution

The fourth proportional to 37,419.76, 51,639.01 and 20,652.76 is: 28,500.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,419.76 : 51,639.01 = 20,652.76 : x
  2. Step 2: Convert to fraction form
    37,419.76/51,639.01 = 20,652.76/x
  3. Step 3: Cross multiply
    37,419.76x = 51,639.01 × 20,652.76
  4. Step 4: Simplify right side
    37,419.76x = 1,066,488,080.17
  5. Step 5: Solve for x
    x = 1,066,488,080.17/37,419.76
  6. Step 6: Final answer
    x = 28,500.67

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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.