Home / 28,509.54-42,762.15-10,028.58

Finding the Fourth Proportional to 28,509.54, 42,762.15 and 10,028.58

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Solution

The fourth proportional to 28,509.54, 42,762.15 and 10,028.58 is: 15,042.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.54 : 42,762.15 = 10,028.58 : x
  2. Step 2: Convert to fraction form
    28,509.54/42,762.15 = 10,028.58/x
  3. Step 3: Cross multiply
    28,509.54x = 42,762.15 × 10,028.58
  4. Step 4: Simplify right side
    28,509.54x = 428,843,642.25
  5. Step 5: Solve for x
    x = 428,843,642.25/28,509.54
  6. Step 6: Final answer
    x = 15,042.11

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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.