Home / 28,402.58-42,603.91-15,338.03

Finding the Fourth Proportional to 28,402.58, 42,603.91 and 15,338.03

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Solution

The fourth proportional to 28,402.58, 42,603.91 and 15,338.03 is: 23,007.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402.58 : 42,603.91 = 15,338.03 : x
  2. Step 2: Convert to fraction form
    28,402.58/42,603.91 = 15,338.03/x
  3. Step 3: Cross multiply
    28,402.58x = 42,603.91 × 15,338.03
  4. Step 4: Simplify right side
    28,402.58x = 653,459,798.33
  5. Step 5: Solve for x
    x = 653,459,798.33/28,402.58
  6. Step 6: Final answer
    x = 23,007.06

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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.