Home / 46,438.20-69,657.30-20,124.60

Finding the Fourth Proportional to 46,438.20, 69,657.30 and 20,124.60

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Solution

The fourth proportional to 46,438.20, 69,657.30 and 20,124.60 is: 30,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,438.20 : 69,657.30 = 20,124.60 : x
  2. Step 2: Convert to fraction form
    46,438.20/69,657.30 = 20,124.60/x
  3. Step 3: Cross multiply
    46,438.20x = 69,657.30 × 20,124.60
  4. Step 4: Simplify right side
    46,438.20x = 1,401,825,299.58
  5. Step 5: Solve for x
    x = 1,401,825,299.58/46,438.20
  6. Step 6: Final answer
    x = 30,186.90

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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.