Home / 28,659.56-39,569.46-21,933.17

Finding the Fourth Proportional to 28,659.56, 39,569.46 and 21,933.17

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Solution

The fourth proportional to 28,659.56, 39,569.46 and 21,933.17 is: 30,282.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,659.56 : 39,569.46 = 21,933.17 : x
  2. Step 2: Convert to fraction form
    28,659.56/39,569.46 = 21,933.17/x
  3. Step 3: Cross multiply
    28,659.56x = 39,569.46 × 21,933.17
  4. Step 4: Simplify right side
    28,659.56x = 867,883,495.14
  5. Step 5: Solve for x
    x = 867,883,495.14/28,659.56
  6. Step 6: Final answer
    x = 30,282.52

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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.