Home / 28,065.90-42,103.26-10,537.02

Finding the Fourth Proportional to 28,065.90, 42,103.26 and 10,537.02

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Solution

The fourth proportional to 28,065.90, 42,103.26 and 10,537.02 is: 15,807.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065.90 : 42,103.26 = 10,537.02 : x
  2. Step 2: Convert to fraction form
    28,065.90/42,103.26 = 10,537.02/x
  3. Step 3: Cross multiply
    28,065.90x = 42,103.26 × 10,537.02
  4. Step 4: Simplify right side
    28,065.90x = 443,642,892.69
  5. Step 5: Solve for x
    x = 443,642,892.69/28,065.90
  6. Step 6: Final answer
    x = 15,807.19

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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.