Home / 28,348.80-42,527.70-9,630.60

Finding the Fourth Proportional to 28,348.80, 42,527.70 and 9,630.60

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Solution

The fourth proportional to 28,348.80, 42,527.70 and 9,630.60 is: 14,447.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,348.80 : 42,527.70 = 9,630.60 : x
  2. Step 2: Convert to fraction form
    28,348.80/42,527.70 = 9,630.60/x
  3. Step 3: Cross multiply
    28,348.80x = 42,527.70 × 9,630.60
  4. Step 4: Simplify right side
    28,348.80x = 409,567,267.62
  5. Step 5: Solve for x
    x = 409,567,267.62/28,348.80
  6. Step 6: Final answer
    x = 14,447.43

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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.