Home / 46,813.20-70,157.68-20,489.28

Finding the Fourth Proportional to 46,813.20, 70,157.68 and 20,489.28

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Solution

The fourth proportional to 46,813.20, 70,157.68 and 20,489.28 is: 30,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,813.20 : 70,157.68 = 20,489.28 : x
  2. Step 2: Convert to fraction form
    46,813.20/70,157.68 = 20,489.28/x
  3. Step 3: Cross multiply
    46,813.20x = 70,157.68 × 20,489.28
  4. Step 4: Simplify right side
    46,813.20x = 1,437,480,349.67
  5. Step 5: Solve for x
    x = 1,437,480,349.67/46,813.20
  6. Step 6: Final answer
    x = 30,706.73

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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.