Home / 30,847.87-46,155.15-28,981.63

Finding the Fourth Proportional to 30,847.87, 46,155.15 and 28,981.63

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Solution

The fourth proportional to 30,847.87, 46,155.15 and 28,981.63 is: 43,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,847.87 : 46,155.15 = 28,981.63 : x
  2. Step 2: Convert to fraction form
    30,847.87/46,155.15 = 28,981.63/x
  3. Step 3: Cross multiply
    30,847.87x = 46,155.15 × 28,981.63
  4. Step 4: Simplify right side
    30,847.87x = 1,337,651,479.89
  5. Step 5: Solve for x
    x = 1,337,651,479.89/30,847.87
  6. Step 6: Final answer
    x = 43,362.85

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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.