Home / 21,579.36-32,368.62-9,726.60

Finding the Fourth Proportional to 21,579.36, 32,368.62 and 9,726.60

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Solution

The fourth proportional to 21,579.36, 32,368.62 and 9,726.60 is: 14,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.36 : 32,368.62 = 9,726.60 : x
  2. Step 2: Convert to fraction form
    21,579.36/32,368.62 = 9,726.60/x
  3. Step 3: Cross multiply
    21,579.36x = 32,368.62 × 9,726.60
  4. Step 4: Simplify right side
    21,579.36x = 314,836,619.29
  5. Step 5: Solve for x
    x = 314,836,619.29/21,579.36
  6. Step 6: Final answer
    x = 14,589.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.