Home / 33,420.36-46,140.12-20,862.12

Finding the Fourth Proportional to 33,420.36, 46,140.12 and 20,862.12

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Solution

The fourth proportional to 33,420.36, 46,140.12 and 20,862.12 is: 28,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,420.36 : 46,140.12 = 20,862.12 : x
  2. Step 2: Convert to fraction form
    33,420.36/46,140.12 = 20,862.12/x
  3. Step 3: Cross multiply
    33,420.36x = 46,140.12 × 20,862.12
  4. Step 4: Simplify right side
    33,420.36x = 962,580,720.25
  5. Step 5: Solve for x
    x = 962,580,720.25/33,420.36
  6. Step 6: Final answer
    x = 28,802.22

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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.