Home / 20,203.30-27,870.96-14,238.25

Finding the Fourth Proportional to 20,203.30, 27,870.96 and 14,238.25

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Solution

The fourth proportional to 20,203.30, 27,870.96 and 14,238.25 is: 19,642.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.30 : 27,870.96 = 14,238.25 : x
  2. Step 2: Convert to fraction form
    20,203.30/27,870.96 = 14,238.25/x
  3. Step 3: Cross multiply
    20,203.30x = 27,870.96 × 14,238.25
  4. Step 4: Simplify right side
    20,203.30x = 396,833,696.22
  5. Step 5: Solve for x
    x = 396,833,696.22/20,203.30
  6. Step 6: Final answer
    x = 19,642.02

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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.