Home / 30,804.24-42,509.76-17,375.40

Finding the Fourth Proportional to 30,804.24, 42,509.76 and 17,375.40

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Solution

The fourth proportional to 30,804.24, 42,509.76 and 17,375.40 is: 23,978.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,804.24 : 42,509.76 = 17,375.40 : x
  2. Step 2: Convert to fraction form
    30,804.24/42,509.76 = 17,375.40/x
  3. Step 3: Cross multiply
    30,804.24x = 42,509.76 × 17,375.40
  4. Step 4: Simplify right side
    30,804.24x = 738,624,083.90
  5. Step 5: Solve for x
    x = 738,624,083.90/30,804.24
  6. Step 6: Final answer
    x = 23,978.00

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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.