Home / 20,758.88-28,653.36-14,473.28

Finding the Fourth Proportional to 20,758.88, 28,653.36 and 14,473.28

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Solution

The fourth proportional to 20,758.88, 28,653.36 and 14,473.28 is: 19,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,758.88 : 28,653.36 = 14,473.28 : x
  2. Step 2: Convert to fraction form
    20,758.88/28,653.36 = 14,473.28/x
  3. Step 3: Cross multiply
    20,758.88x = 28,653.36 × 14,473.28
  4. Step 4: Simplify right side
    20,758.88x = 414,708,102.22
  5. Step 5: Solve for x
    x = 414,708,102.22/20,758.88
  6. Step 6: Final answer
    x = 19,977.38

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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.