Home / 20,842.26-28,742.13-17,655.27

Finding the Fourth Proportional to 20,842.26, 28,742.13 and 17,655.27

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Solution

The fourth proportional to 20,842.26, 28,742.13 and 17,655.27 is: 24,347.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.26 : 28,742.13 = 17,655.27 : x
  2. Step 2: Convert to fraction form
    20,842.26/28,742.13 = 17,655.27/x
  3. Step 3: Cross multiply
    20,842.26x = 28,742.13 × 17,655.27
  4. Step 4: Simplify right side
    20,842.26x = 507,450,065.53
  5. Step 5: Solve for x
    x = 507,450,065.53/20,842.26
  6. Step 6: Final answer
    x = 24,347.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.