Home / 42,517.17-63,678.56-20,346.12

Finding the Fourth Proportional to 42,517.17, 63,678.56 and 20,346.12

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Solution

The fourth proportional to 42,517.17, 63,678.56 and 20,346.12 is: 30,472.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,517.17 : 63,678.56 = 20,346.12 : x
  2. Step 2: Convert to fraction form
    42,517.17/63,678.56 = 20,346.12/x
  3. Step 3: Cross multiply
    42,517.17x = 63,678.56 × 20,346.12
  4. Step 4: Simplify right side
    42,517.17x = 1,295,611,836.55
  5. Step 5: Solve for x
    x = 1,295,611,836.55/42,517.17
  6. Step 6: Final answer
    x = 30,472.67

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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.