Home / 30,731.40-46,099.98-25,478.28

Finding the Fourth Proportional to 30,731.40, 46,099.98 and 25,478.28

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Solution

The fourth proportional to 30,731.40, 46,099.98 and 25,478.28 is: 38,219.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,731.40 : 46,099.98 = 25,478.28 : x
  2. Step 2: Convert to fraction form
    30,731.40/46,099.98 = 25,478.28/x
  3. Step 3: Cross multiply
    30,731.40x = 46,099.98 × 25,478.28
  4. Step 4: Simplify right side
    30,731.40x = 1,174,548,198.43
  5. Step 5: Solve for x
    x = 1,174,548,198.43/30,731.40
  6. Step 6: Final answer
    x = 38,219.81

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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.