Home / 19,907.52-27,472.96-10,955.28

Finding the Fourth Proportional to 19,907.52, 27,472.96 and 10,955.28

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Solution

The fourth proportional to 19,907.52, 27,472.96 and 10,955.28 is: 15,118.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.52 : 27,472.96 = 10,955.28 : x
  2. Step 2: Convert to fraction form
    19,907.52/27,472.96 = 10,955.28/x
  3. Step 3: Cross multiply
    19,907.52x = 27,472.96 × 10,955.28
  4. Step 4: Simplify right side
    19,907.52x = 300,973,969.23
  5. Step 5: Solve for x
    x = 300,973,969.23/19,907.52
  6. Step 6: Final answer
    x = 15,118.61

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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.