Home / 19,907.84-27,467.12-12,838.32

Finding the Fourth Proportional to 19,907.84, 27,467.12 and 12,838.32

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Solution

The fourth proportional to 19,907.84, 27,467.12 and 12,838.32 is: 17,713.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.84 : 27,467.12 = 12,838.32 : x
  2. Step 2: Convert to fraction form
    19,907.84/27,467.12 = 12,838.32/x
  3. Step 3: Cross multiply
    19,907.84x = 27,467.12 × 12,838.32
  4. Step 4: Simplify right side
    19,907.84x = 352,631,676.04
  5. Step 5: Solve for x
    x = 352,631,676.04/19,907.84
  6. Step 6: Final answer
    x = 17,713.21

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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.