Home / 31,627.56-47,457.90-20,531.64

Finding the Fourth Proportional to 31,627.56, 47,457.90 and 20,531.64

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Solution

The fourth proportional to 31,627.56, 47,457.90 and 20,531.64 is: 30,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,627.56 : 47,457.90 = 20,531.64 : x
  2. Step 2: Convert to fraction form
    31,627.56/47,457.90 = 20,531.64/x
  3. Step 3: Cross multiply
    31,627.56x = 47,457.90 × 20,531.64
  4. Step 4: Simplify right side
    31,627.56x = 974,388,517.96
  5. Step 5: Solve for x
    x = 974,388,517.96/31,627.56
  6. Step 6: Final answer
    x = 30,808.21

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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.