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Finding the Fourth Proportional to 34,687.47, 47,863.76 and 19,578.99

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Solution

The fourth proportional to 34,687.47, 47,863.76 and 19,578.99 is: 27,016.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,687.47 : 47,863.76 = 19,578.99 : x
  2. Step 2: Convert to fraction form
    34,687.47/47,863.76 = 19,578.99/x
  3. Step 3: Cross multiply
    34,687.47x = 47,863.76 × 19,578.99
  4. Step 4: Simplify right side
    34,687.47x = 937,123,980.51
  5. Step 5: Solve for x
    x = 937,123,980.51/34,687.47
  6. Step 6: Final answer
    x = 27,016.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.