Home / 33,828.12-46,681.14-18,720.50

Finding the Fourth Proportional to 33,828.12, 46,681.14 and 18,720.50

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Solution

The fourth proportional to 33,828.12, 46,681.14 and 18,720.50 is: 25,833.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,828.12 : 46,681.14 = 18,720.50 : x
  2. Step 2: Convert to fraction form
    33,828.12/46,681.14 = 18,720.50/x
  3. Step 3: Cross multiply
    33,828.12x = 46,681.14 × 18,720.50
  4. Step 4: Simplify right side
    33,828.12x = 873,894,281.37
  5. Step 5: Solve for x
    x = 873,894,281.37/33,828.12
  6. Step 6: Final answer
    x = 25,833.37

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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.