Home / 28,051.85-42,065.46-10,509.38

Finding the Fourth Proportional to 28,051.85, 42,065.46 and 10,509.38

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Solution

The fourth proportional to 28,051.85, 42,065.46 and 10,509.38 is: 15,759.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.85 : 42,065.46 = 10,509.38 : x
  2. Step 2: Convert to fraction form
    28,051.85/42,065.46 = 10,509.38/x
  3. Step 3: Cross multiply
    28,051.85x = 42,065.46 × 10,509.38
  4. Step 4: Simplify right side
    28,051.85x = 442,081,851.43
  5. Step 5: Solve for x
    x = 442,081,851.43/28,051.85
  6. Step 6: Final answer
    x = 15,759.45

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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.