Home / 31,178.81-46,768.23-12,467.21

Finding the Fourth Proportional to 31,178.81, 46,768.23 and 12,467.21

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Solution

The fourth proportional to 31,178.81, 46,768.23 and 12,467.21 is: 18,700.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178.81 : 46,768.23 = 12,467.21 : x
  2. Step 2: Convert to fraction form
    31,178.81/46,768.23 = 12,467.21/x
  3. Step 3: Cross multiply
    31,178.81x = 46,768.23 × 12,467.21
  4. Step 4: Simplify right side
    31,178.81x = 583,069,110.90
  5. Step 5: Solve for x
    x = 583,069,110.90/31,178.81
  6. Step 6: Final answer
    x = 18,700.81

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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.