Home / 28,938-43,406.96-19,005.45

Finding the Fourth Proportional to 28,938, 43,406.96 and 19,005.45

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Solution

The fourth proportional to 28,938, 43,406.96 and 19,005.45 is: 28,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938 : 43,406.96 = 19,005.45 : x
  2. Step 2: Convert to fraction form
    28,938/43,406.96 = 19,005.45/x
  3. Step 3: Cross multiply
    28,938x = 43,406.96 × 19,005.45
  4. Step 4: Simplify right side
    28,938x = 824,968,712.90
  5. Step 5: Solve for x
    x = 824,968,712.90/28,938
  6. Step 6: Final answer
    x = 28,508.15

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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.