Home / 20,514.90-28,304.24-12,548.82

Finding the Fourth Proportional to 20,514.90, 28,304.24 and 12,548.82

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Solution

The fourth proportional to 20,514.90, 28,304.24 and 12,548.82 is: 17,313.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.90 : 28,304.24 = 12,548.82 : x
  2. Step 2: Convert to fraction form
    20,514.90/28,304.24 = 12,548.82/x
  3. Step 3: Cross multiply
    20,514.90x = 28,304.24 × 12,548.82
  4. Step 4: Simplify right side
    20,514.90x = 355,184,813.00
  5. Step 5: Solve for x
    x = 355,184,813.00/20,514.90
  6. Step 6: Final answer
    x = 17,313.50

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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.