Home / 21,035.05-28,993.17-18,476.26

Finding the Fourth Proportional to 21,035.05, 28,993.17 and 18,476.26

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Solution

The fourth proportional to 21,035.05, 28,993.17 and 18,476.26 is: 25,466.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035.05 : 28,993.17 = 18,476.26 : x
  2. Step 2: Convert to fraction form
    21,035.05/28,993.17 = 18,476.26/x
  3. Step 3: Cross multiply
    21,035.05x = 28,993.17 × 18,476.26
  4. Step 4: Simplify right side
    21,035.05x = 535,685,347.14
  5. Step 5: Solve for x
    x = 535,685,347.14/21,035.05
  6. Step 6: Final answer
    x = 25,466.32

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1.5x scale

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.