Home / 31,325.60-46,977.47-12,600.78

Finding the Fourth Proportional to 31,325.60, 46,977.47 and 12,600.78

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Solution

The fourth proportional to 31,325.60, 46,977.47 and 12,600.78 is: 18,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,325.60 : 46,977.47 = 12,600.78 : x
  2. Step 2: Convert to fraction form
    31,325.60/46,977.47 = 12,600.78/x
  3. Step 3: Cross multiply
    31,325.60x = 46,977.47 × 12,600.78
  4. Step 4: Simplify right side
    31,325.60x = 591,952,935.85
  5. Step 5: Solve for x
    x = 591,952,935.85/31,325.60
  6. Step 6: Final answer
    x = 18,896.78

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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.