Home / 28,019.96-42,028.32-10,262.60

Finding the Fourth Proportional to 28,019.96, 42,028.32 and 10,262.60

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Solution

The fourth proportional to 28,019.96, 42,028.32 and 10,262.60 is: 15,393.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,019.96 : 42,028.32 = 10,262.60 : x
  2. Step 2: Convert to fraction form
    28,019.96/42,028.32 = 10,262.60/x
  3. Step 3: Cross multiply
    28,019.96x = 42,028.32 × 10,262.60
  4. Step 4: Simplify right side
    28,019.96x = 431,319,836.83
  5. Step 5: Solve for x
    x = 431,319,836.83/28,019.96
  6. Step 6: Final answer
    x = 15,393.31

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1.5x scale

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.