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Finding the Fourth Proportional to 47,323.49, 70,980.50 and 19,245.20

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Solution

The fourth proportional to 47,323.49, 70,980.50 and 19,245.20 is: 28,865.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,323.49 : 70,980.50 = 19,245.20 : x
  2. Step 2: Convert to fraction form
    47,323.49/70,980.50 = 19,245.20/x
  3. Step 3: Cross multiply
    47,323.49x = 70,980.50 × 19,245.20
  4. Step 4: Simplify right side
    47,323.49x = 1,366,033,611.81
  5. Step 5: Solve for x
    x = 1,366,033,611.81/47,323.49
  6. Step 6: Final answer
    x = 28,865.87

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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.