Home / 19,823.88-27,362.16-11,872.32

Finding the Fourth Proportional to 19,823.88, 27,362.16 and 11,872.32

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Solution

The fourth proportional to 19,823.88, 27,362.16 and 11,872.32 is: 16,386.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.88 : 27,362.16 = 11,872.32 : x
  2. Step 2: Convert to fraction form
    19,823.88/27,362.16 = 11,872.32/x
  3. Step 3: Cross multiply
    19,823.88x = 27,362.16 × 11,872.32
  4. Step 4: Simplify right side
    19,823.88x = 324,852,319.41
  5. Step 5: Solve for x
    x = 324,852,319.41/19,823.88
  6. Step 6: Final answer
    x = 16,386.92

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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.