Home / 28,985.69-43,480.56-9,265.83

Finding the Fourth Proportional to 28,985.69, 43,480.56 and 9,265.83

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Solution

The fourth proportional to 28,985.69, 43,480.56 and 9,265.83 is: 13,899.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.69 : 43,480.56 = 9,265.83 : x
  2. Step 2: Convert to fraction form
    28,985.69/43,480.56 = 9,265.83/x
  3. Step 3: Cross multiply
    28,985.69x = 43,480.56 × 9,265.83
  4. Step 4: Simplify right side
    28,985.69x = 402,883,477.26
  5. Step 5: Solve for x
    x = 402,883,477.26/28,985.69
  6. Step 6: Final answer
    x = 13,899.39

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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.