Home / 31,123.10-46,690.86-8,936.66

Finding the Fourth Proportional to 31,123.10, 46,690.86 and 8,936.66

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Solution

The fourth proportional to 31,123.10, 46,690.86 and 8,936.66 is: 13,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,123.10 : 46,690.86 = 8,936.66 : x
  2. Step 2: Convert to fraction form
    31,123.10/46,690.86 = 8,936.66/x
  3. Step 3: Cross multiply
    31,123.10x = 46,690.86 × 8,936.66
  4. Step 4: Simplify right side
    31,123.10x = 417,260,340.93
  5. Step 5: Solve for x
    x = 417,260,340.93/31,123.10
  6. Step 6: Final answer
    x = 13,406.77

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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.