Home / 26,579.79-39,864.21-11,779.28

Finding the Fourth Proportional to 26,579.79, 39,864.21 and 11,779.28

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Solution

The fourth proportional to 26,579.79, 39,864.21 and 11,779.28 is: 17,666.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,579.79 : 39,864.21 = 11,779.28 : x
  2. Step 2: Convert to fraction form
    26,579.79/39,864.21 = 11,779.28/x
  3. Step 3: Cross multiply
    26,579.79x = 39,864.21 × 11,779.28
  4. Step 4: Simplify right side
    26,579.79x = 469,571,492.25
  5. Step 5: Solve for x
    x = 469,571,492.25/26,579.79
  6. Step 6: Final answer
    x = 17,666.49

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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.