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Finding the Fourth Proportional to 47,343.40, 70,928.70 and 28,853.80

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Solution

The fourth proportional to 47,343.40, 70,928.70 and 28,853.80 is: 43,228.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,343.40 : 70,928.70 = 28,853.80 : x
  2. Step 2: Convert to fraction form
    47,343.40/70,928.70 = 28,853.80/x
  3. Step 3: Cross multiply
    47,343.40x = 70,928.70 × 28,853.80
  4. Step 4: Simplify right side
    47,343.40x = 2,046,562,524.06
  5. Step 5: Solve for x
    x = 2,046,562,524.06/47,343.40
  6. Step 6: Final answer
    x = 43,228.04

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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.