Home / 28,635.00-42,908.65-11,985.97

Finding the Fourth Proportional to 28,635.00, 42,908.65 and 11,985.97

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Solution

The fourth proportional to 28,635.00, 42,908.65 and 11,985.97 is: 17,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,635.00 : 42,908.65 = 11,985.97 : x
  2. Step 2: Convert to fraction form
    28,635.00/42,908.65 = 11,985.97/x
  3. Step 3: Cross multiply
    28,635.00x = 42,908.65 × 11,985.97
  4. Step 4: Simplify right side
    28,635.00x = 514,301,577.10
  5. Step 5: Solve for x
    x = 514,301,577.10/28,635.00
  6. Step 6: Final answer
    x = 17,960.60

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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.