Home / 19,630.80-29,446.20-4,839.60

Finding the Fourth Proportional to 19,630.80, 29,446.20 and 4,839.60

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Solution

The fourth proportional to 19,630.80, 29,446.20 and 4,839.60 is: 7,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.80 : 29,446.20 = 4,839.60 : x
  2. Step 2: Convert to fraction form
    19,630.80/29,446.20 = 4,839.60/x
  3. Step 3: Cross multiply
    19,630.80x = 29,446.20 × 4,839.60
  4. Step 4: Simplify right side
    19,630.80x = 142,507,829.52
  5. Step 5: Solve for x
    x = 142,507,829.52/19,630.80
  6. Step 6: Final answer
    x = 7,259.40

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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.