Home / 19,703.36-27,180.06-13,321.55

Finding the Fourth Proportional to 19,703.36, 27,180.06 and 13,321.55

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Solution

The fourth proportional to 19,703.36, 27,180.06 and 13,321.55 is: 18,376.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.36 : 27,180.06 = 13,321.55 : x
  2. Step 2: Convert to fraction form
    19,703.36/27,180.06 = 13,321.55/x
  3. Step 3: Cross multiply
    19,703.36x = 27,180.06 × 13,321.55
  4. Step 4: Simplify right side
    19,703.36x = 362,080,528.29
  5. Step 5: Solve for x
    x = 362,080,528.29/19,703.36
  6. Step 6: Final answer
    x = 18,376.59

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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.