Home / 21,608.81-29,828.36-14,539.34

Finding the Fourth Proportional to 21,608.81, 29,828.36 and 14,539.34

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Solution

The fourth proportional to 21,608.81, 29,828.36 and 14,539.34 is: 20,069.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,608.81 : 29,828.36 = 14,539.34 : x
  2. Step 2: Convert to fraction form
    21,608.81/29,828.36 = 14,539.34/x
  3. Step 3: Cross multiply
    21,608.81x = 29,828.36 × 14,539.34
  4. Step 4: Simplify right side
    21,608.81x = 433,684,667.68
  5. Step 5: Solve for x
    x = 433,684,667.68/21,608.81
  6. Step 6: Final answer
    x = 20,069.81

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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.