Home / 20,984.33-31,476.59-8,504.60

Finding the Fourth Proportional to 20,984.33, 31,476.59 and 8,504.60

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Solution

The fourth proportional to 20,984.33, 31,476.59 and 8,504.60 is: 12,756.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.33 : 31,476.59 = 8,504.60 : x
  2. Step 2: Convert to fraction form
    20,984.33/31,476.59 = 8,504.60/x
  3. Step 3: Cross multiply
    20,984.33x = 31,476.59 × 8,504.60
  4. Step 4: Simplify right side
    20,984.33x = 267,695,607.41
  5. Step 5: Solve for x
    x = 267,695,607.41/20,984.33
  6. Step 6: Final answer
    x = 12,756.93

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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.