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Finding the Fourth Proportional to 39,662.70, 59,478.62 and 19,927.50

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Solution

The fourth proportional to 39,662.70, 59,478.62 and 19,927.50 is: 29,883.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,662.70 : 59,478.62 = 19,927.50 : x
  2. Step 2: Convert to fraction form
    39,662.70/59,478.62 = 19,927.50/x
  3. Step 3: Cross multiply
    39,662.70x = 59,478.62 × 19,927.50
  4. Step 4: Simplify right side
    39,662.70x = 1,185,260,100.41
  5. Step 5: Solve for x
    x = 1,185,260,100.41/39,662.70
  6. Step 6: Final answer
    x = 29,883.50

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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.