Home / 19,638.60-29,457.18-4,847.40

Finding the Fourth Proportional to 19,638.60, 29,457.18 and 4,847.40

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Solution

The fourth proportional to 19,638.60, 29,457.18 and 4,847.40 is: 7,270.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,638.60 : 29,457.18 = 4,847.40 : x
  2. Step 2: Convert to fraction form
    19,638.60/29,457.18 = 4,847.40/x
  3. Step 3: Cross multiply
    19,638.60x = 29,457.18 × 4,847.40
  4. Step 4: Simplify right side
    19,638.60x = 142,790,734.33
  5. Step 5: Solve for x
    x = 142,790,734.33/19,638.60
  6. Step 6: Final answer
    x = 7,270.92

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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.