Home / 31,457.96-47,147.43-18,817.04

Finding the Fourth Proportional to 31,457.96, 47,147.43 and 18,817.04

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Solution

The fourth proportional to 31,457.96, 47,147.43 and 18,817.04 is: 28,201.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,457.96 : 47,147.43 = 18,817.04 : x
  2. Step 2: Convert to fraction form
    31,457.96/47,147.43 = 18,817.04/x
  3. Step 3: Cross multiply
    31,457.96x = 47,147.43 × 18,817.04
  4. Step 4: Simplify right side
    31,457.96x = 887,175,076.21
  5. Step 5: Solve for x
    x = 887,175,076.21/31,457.96
  6. Step 6: Final answer
    x = 28,201.93

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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.