Home / 39,150.86-58,730.84-12,487.55

Finding the Fourth Proportional to 39,150.86, 58,730.84 and 12,487.55

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Solution

The fourth proportional to 39,150.86, 58,730.84 and 12,487.55 is: 18,732.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,150.86 : 58,730.84 = 12,487.55 : x
  2. Step 2: Convert to fraction form
    39,150.86/58,730.84 = 12,487.55/x
  3. Step 3: Cross multiply
    39,150.86x = 58,730.84 × 12,487.55
  4. Step 4: Simplify right side
    39,150.86x = 733,403,944.95
  5. Step 5: Solve for x
    x = 733,403,944.95/39,150.86
  6. Step 6: Final answer
    x = 18,732.77

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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.