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Finding the Fourth Proportional to 39,696.32, 59,573.64 and 19,955

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Solution

The fourth proportional to 39,696.32, 59,573.64 and 19,955 is: 29,947.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,696.32 : 59,573.64 = 19,955 : x
  2. Step 2: Convert to fraction form
    39,696.32/59,573.64 = 19,955/x
  3. Step 3: Cross multiply
    39,696.32x = 59,573.64 × 19,955
  4. Step 4: Simplify right side
    39,696.32x = 1,188,791,986.20
  5. Step 5: Solve for x
    x = 1,188,791,986.20/39,696.32
  6. Step 6: Final answer
    x = 29,947.16

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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.