Home / 31,170.42-46,727.28-13,633.92

Finding the Fourth Proportional to 31,170.42, 46,727.28 and 13,633.92

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Solution

The fourth proportional to 31,170.42, 46,727.28 and 13,633.92 is: 20,438.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,170.42 : 46,727.28 = 13,633.92 : x
  2. Step 2: Convert to fraction form
    31,170.42/46,727.28 = 13,633.92/x
  3. Step 3: Cross multiply
    31,170.42x = 46,727.28 × 13,633.92
  4. Step 4: Simplify right side
    31,170.42x = 637,075,997.34
  5. Step 5: Solve for x
    x = 637,075,997.34/31,170.42
  6. Step 6: Final answer
    x = 20,438.48

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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.